In questions of science, the authority of a thousand is not worth the humble reasoning of a single individual.
You cannot teach a man anything; you can only help him find it within himself.
All truths are easy to understand once they are discovered; the point is to discover them.
Wine is sunlight, held together by water.
Measure what can be measured, and make measurable what cannot be measured.
I do not feel obliged to believe that the same God who has endowed us with sense, reason, and intellect has intended us to forgo their use.
Eureka! I have found it!
Nature is relentless and unchangeable, and it is indifferent as to whether its hidden reasons and actions are understandable or not.
Philosophy is written in that great book, the universe, which stands continually open to our gaze, but it cannot be understood unless one first learns to comprehend the language and symbols in which it is written.
All truths are easy to understand once they are discovered; the point is to discover them.
You must measure the motion of the earth in order to understand the heavens.
The sun, with all those planets revolving around it and dependent on it, can still ripen a bunch of grapes as if it had nothing else in the universe to do.
I do not believe that the world is governed by chance; it is governed by a higher power.
Science knows no country, because knowledge belongs to humanity and is the torch which illuminates the world.
I can measure the motion of bodies but cannot measure human folly.
In questions of science, the authority of a thousand is not worth the humble reasoning of a single individual.
To be humane, we must ever rise above the animal way.
The book of nature is written in the language of mathematics.
The earth is the cradle of humanity, but mankind cannot stay in the cradle forever.
Measure what can be measured, and make measurable what cannot be measured.
What goes up must come down.
The greatest wisdom is to see through your own eyes.
All truths are easy to understand once they are discovered; the point is to discover them.
A little madness in the spring is wholesome even for the king.
Nature is relentless and unchangeable.
We cannot teach people anything; we can only help them discover it within themselves.
Gravity explains the motions of the planets, but it cannot explain who sets the planets in motion.
Where the senses fail us, reason must step in.
Nothing can be hidden under the sun.
It is surely harmful to souls to make it a heresy to believe what is proved.
Philosophy is written in that great book, the universe.
I do not feel obliged to believe that the same God who has endowed us with sense, reason, and intellect has intended us to forgo their use.
A man can be as important as he thinks he is.
All truths are easy to understand once they are discovered.
Nature is a book that cannot be read without understanding its language.
In science, there is no such thing as a certain answer.
You cannot directly observe the motions of the earth without some abstract reasoning.
Truth cannot be contradicted; it always proves itself.
Science is the father of knowledge, but opinion breeds ignorance.
The sun, with all those planets revolving around it, can still ripen a bunch of grapes.
In the realm of science, doubt is the foundation of progress.
Every action has an equal and opposite reaction.
One of the greatest talents of the mind is the ability to think outside the confines of tradition.
I do not think that the world is governed only by chance.
The greatest discoveries are made through imagination and experimentation.