Medicine is my lawful wife and literature my mistress; when I get tired of one, I spend the night with the other.
Never help a child with a task at which he feels he can succeed.
The books that the world calls immoral are books that show the world its own shame.
With educated people, I suppose, punctuation is a matter of rule; with me it is a matter of feeling. But I must say I have great respect for the semi-colon; it's a useful little chap.
Study hard what interests you the most in the most undisciplined, irreverent and original manner possible.
I do not know how to teach philosophy without becoming a disturber of the peace.
The only true wisdom is in knowing you know nothing.
I had rather excel others in the knowledge of what is excellent, than in the extent of my power and dominion
Knowledge is of two kinds. We know a subject ourselves, or we know where we can find information upon it.
Any knowledge that doesn't lead to new questions quickly dies out: it fails to maintain the temperature required for sustaining life.
The real solution lies in a world in which charity will have become unnecessary.
You can never be overdressed or overeducated.
The reading of all good books is like conversation with the finest men of past centuries.
Integrity without knowledge is weak and useless, and knowledge without integrity is dangerous and dreadful.
A spirit of national masochism prevails, encouraged by an effete corps of impudent snobs who characterize themselves as intellectuals.
As we acquire more knowledge, things do not become more comprehensible but more mysterious.
Knowing others is wisdom, knowing yourself is Enlightenment.
A little knowledge is a dangerous thing. So is a lot.
I cannot live without books.
It is not enough for the teacher to love the child. She must first love and understand the universe. She must prepare herself, and truly work at it.
To every action there is always an equal and opposite or contrary, reaction