Immanuel Kant
Science is organized knowledge. Wisdom is organized life.Collection: Knowledge
To be is to do.Collection: Brainy
He who is cruel to animals becomes hard also in his dealings with men. We can judge the heart of a man by his treatment of animals.Collection: Pet
Intuition and concepts constitute... the elements of all our knowledge, so that neither concepts without an intuition in some way corresponding to them, nor intuition without concepts, can yield knowledge.Collection: Knowledge
Happiness is not an ideal of reason, but of imagination.Collection: Imagination
Experience without theory is blind, but theory without experience is mere intellectual play.Collection: Experience
What can I know? What ought I to do? What can I hope?Collection: Hope
Religion is the recognition of all our duties as divine commands.Collection: Religion
All the interests of my reason, speculative as well as practical, combine in the three following questions: 1. What can I know? 2. What ought I to do? 3. What may I hope?Collection: Hope
All our knowledge begins with the senses, proceeds then to the understanding, and ends with reason. There is nothing higher than reason.Collection: Knowledge
But although all our knowledge begins with experience, it does not follow that it arises from experience.Collection: Experience
I had therefore to remove knowledge, in order to make room for belief.Collection: Knowledge
It is beyond a doubt that all our knowledge begins with experience.Collection: Knowledge
Live your life as though your every act were to become a universal law.Collection: Life
It is not God's will merely that we should be happy, but that we should make ourselves happy.Collection: Happiness
Morality is not the doctrine of how we may make ourselves happy, but how we may make ourselves worthy of happiness.Collection: Happiness
Immaturity is the incapacity to use one's intelligence without the guidance of another.Collection: Intelligence
Even philosophers will praise war as ennobling mankind, forgetting the Greek who said: 'War is bad in that it begets more evil than it kills.'Collection: War
Two things awe me most, the starry sky above me and the moral law within me.
In law a man is guilty when he violates the rights of others. In ethics he is guilty if he only thinks of doing so.
If man makes himself a worm he must not complain when he is trodden on.
By a lie, a man... annihilates his dignity as a man.
Metaphysics is a dark ocean without shores or lighthouse, strewn with many a philosophic wreck.
Always recognize that human individuals are ends, and do not use them as means to your end.
Ingratitude is the essence of vileness.
Seek not the favor of the multitude; it is seldom got by honest and lawful means. But seek the testimony of few; and number not voices, but weigh them.
Thoughts without content are empty, intuitions without concepts are blind.
It is not necessary that whilst I live I live happily; but it is necessary that so long as I live I should live honourably.
Nothing is divine but what is agreeable to reason.
From such crooked wood as that which man is made of, nothing straight can be fashioned.
Act that your principle of action might safely be made a law for the whole world.
May you live your life as if the maxim of your actions were to become universal law.
So act that your principle of action might safely be made a law for the whole world.
The only objects of practical reason are therefore those of good and evil. For by the former is meant an object necessarily desired according to a principle of reason; by the latter one necessarily shunned, also according to a principle of reason.
Out of timber so crooked as that from which man is made nothing entirely straight can be carved.
All thought must, directly or indirectly, by way of certain characters, relate ultimately to intuitions, and therefore, with us, to sensibility, because in no other way can an object be given to us.
A categorical imperative would be one which represented an action as objectively necessary in itself, without reference to any other purpose.
Patience is the strength of the weak, impatience is the weakness of the strong.Collection: Strong
If you punish a child for being naughty, and reward him for being good, he will do right merely for the sake of the reward; and when he goes out into the world and finds that goodness is not always rewarded, nor wickedness always punished, he will grow into a man who only thinks about how he may get on in the world, and does right or wrong according as he finds advantage to himself.Collection: Children
Three things tell a man: his eyes, his friends and his favorite quotesCollection: Friendship
Rules for Happiness: something to do, someone to love, something to hope for.Collection: Inspirational
We are not rich by what we possess but by what we can do without.Collection: Inspirational
You only know me as you see me, not as I actually amCollection: Know Me
Do the right thing because it is right.Collection: Courage
But a lie is a lie, and in itself intrinsically evil, whether it be told with good or bad intents.Collection: Lying
Most men use their knowledge only under guidance from others because they lack the courage to think independently using their own reasoning abilities. It takes intellectual daring to discover the truth.Collection: Men
The only thing permanent is change.Collection: Permanent
Maturity is having the courage to use one's own intelligence!Collection: Wisdom
We can judge the heart of a man by his treatment of animals.Collection: Dog
The wise man can change his mind; the stubborn one, never.Collection: Wise