The more I read, the more I acquire, the more certain I am that I know nothing.
I had rather excel others in the knowledge of what is excellent, than in the extent of my power and dominion
A child educated only at school is an uneducated child.
It isn't what we don't know that gives us trouble, it's what we know that ain't so.
Action not backed by knowledge and knowledge not translatable into action, both can not stand the test of time.
Any sufficiently advanced technology is indistinguishable from magic.
If you can't explain it simply, you don't understand it well enough.
When you know better you do better.
Language is courage: the ability to conceive a thought, to speak it, and by doing so to make it true.
All stable processes we shall predict. All unstable processes we shall control.
Common sense is the collection of prejudices acquired by age eighteen.
The whole of science is nothing more than a refinement of everyday thinking.
Books! I dunno if I ever told you this, but books are the greatest gift one person can give another.
God created man in His own image, says the Bible; philosophers reverse the process: they create God in theirs.
The highest activity a human being can attain is learning for understanding, because to understand is to be free.
There is one quality which one must possess to win, and that is definiteness of purpose, the knowledge of what one wants, and a burning desire to possess it.
All sciences are vain and full of errors that are not born of Experience, the mother of all Knowledge.
You can never be overdressed or overeducated.
The secret of life is not enjoyment but education through experience.
Don't worry that children never listen to you; worry that they are always watching you.
I cannot live without books.