Knowledge is of two kinds. We know a subject ourselves, or we know where we can find information upon it.
The idea is to try to give all the information to help others to judge the value of your contribution; not just the information that leads to judgment in one particular direction or another.
What we know is a drop, what we don't know is an ocean.
All sciences are vain and full of errors that are not born of Experience, the mother of all Knowledge.
I am so clever that sometimes I don't understand a single word of what I am saying.
Common sense is the collection of prejudices acquired by age eighteen.
The man who does not read good books has no advantage over the man who can't read them.
Books are as useful to a stupid person as a mirror is useful to a blind person.
Evil being the root of mystery, pain is the root of knowledge.
To read is to fly: it is to soar to a point of vantage which gives a view over wide terrains of history, human variety, ideas, shared experience and the fruits of many inquiries.
A witty saying proves nothing.
Reading without reflecting is like eating without digesting.
Seek knowledge from the cradle to the grave.
It is better to know how to learn than to know.
The reading of all good books is like conversation with the finest men of past centuries.
What is freedom of expression? Without the freedom to offend, it ceases to exist.
There is nothing more notable in Socrates than that he found time, when he was an old man, to learn music and dancing, and thought it time well spent.
The highest result of education is tolerance.
If one cannot enjoy reading a book over and over again, there is no use in reading it at all.
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.
The secret of life is not enjoyment but education through experience.