Louis Pasteur
If it is a terrifying thought that life is at the mercy of the multiplication of these minute bodies [microbes], it is a consoling hope that Science will not always remain powerless before such enemies.Collection: Science
These three things-work, will, success-fill human existences. Will opens the door to success, both brilliant and happy. Work passes these doors, and at the end of the journey success comes in to crown one's efforts.Collection: Success
Do not promote what you can't explain, simplify, and prove early.Collection: Simplify
Wine is the healthiest and most health-giving of drinks.Collection: Wine
Fortune favors the well-prepared.Collection: Favors
Science brings men nearer to God.Collection: Men
Science advances through tentative answers to a series of more and more subtle questions which reach deeper and deeper into the essence of natural phenomena.Collection: Essence
Preconceived ideas are like searchlights which illumine the path of the experimenter and serve him as a guide to interrogate nature. They become a danger only if he transforms them into fixed ideas-this is why I should like to see these profound words inscribed on the threshold of all the temples of science: 'The greatest derangement of the mind is to believe in something because one wishes it to be so.'Collection: Believe
The controls of life are structured as forms and nuclear arrangements, in a relation with the motions of the universe.Collection: Astrology
The greatest malfunction of spirit is to believe things.Collection: Believe
Wine is the most healthful and most hygienic of beverages.Collection: Food
Oh my goodness the mystery that has prompted my objective. My quality lies exclusively in my tirelessness.Collection: Lying
Where observation is concerned, chance favors only the prepared mind.Collection: Life
Time is the best appraiser of scientific work, and I am aware that an industrial discovery rarely produces all its fruit in the hands of its first inventor.Collection: Discovery
When you believe you have found an important scientific fact, and are feverishly curious to publish it, constrain yourself for days, weeks, years sometimes, fight yourself, try and ruin your own experiments, and only proclaim your discovery after having exhausted all contrary hypotheses. But when, after so many efforts you have at last arrived at a certainty, your joy is one of the greatest which can be felt by a human soul.Collection: Believe
The Greeks understood the mysterious power of the below things. They are the ones who gave us one of the most beautiful words in our language, the word enthusiasm.Collection: Beautiful
The greatest disorder of the mind is to let will direct it.Collection: Mind
Worship the spirit of criticism.Collection: Criticism
When one works and imagines and dreams of nothing else than the search for answers that God has posed, it is difficult to be so still.Collection: Dream
La fortuna juega a favor de una mente preparadaCollection: Favors
God grant that by my persevering labours I may bring a little stone to the frail and ill-assured edifice of our knowledge of those deep mysteries of Life and Death where all our intellects have so lamentably failed.Collection: Life And Death
Great problems are now being handled, keeping every thinking man in suspense; the unity or multiplicity of human races; the creation of man 1,000 years or 1,000 centuries ago; the fixity of species, or the slow and progressive transformation of one species into another; the eternity of matter; the idea of a God unnecessary: such are some of the questions that humanity discusses nowadays.Collection: Men
To bring one's self to believe in a truth that has just dawned upon one is the first step towards progress; to persuade others is the second.Collection: Believe
In good philosophy, the word cause ought to be reserved to the single Divine impulse that has formed the universe.Collection: Philosophy
In the fields of observation chance favors only those minds which are prepared.Collection: Past
Posterity will one day laugh at the foolishness of modern materialistic philosophers.Collection: Laughing
There are two men in each one of us: the scientist, he who starts with a clear field and desires to rise to the knowledge of Nature through observations, experimentation and reasoning, and the man of sentiment, the man of belief, the man who mourns his dead children, and who cannot, alas, prove that he will see them again, but who believes that he will, and lives in the hope – the man who will not die like a vibrio, but who feels that the force that is within him cannot die.Collection: Children
Let me tell you the secret that has led me to my goal: my strength lies solely in my tenacity.Collection: Persistence