Integrity without knowledge is weak and useless, and knowledge without integrity is dangerous and dreadful.

All stable processes we shall predict. All unstable processes we shall control.

There is no authority who decides what is a good idea.

Common sense is the collection of prejudices acquired by age eighteen.

In mathematics you don't understand things. You just get used to them.

You can never learn less, you can only learn more.

I have just three things to teach: simplicity, patience, compassion. These three are your greatest treasures.

Knowledge becomes evil if the aim be not virtuous.

If I could explain it to the average person, I wouldn't have been worth the Nobel Prize.

Any man who reads too much and uses his own brain too little falls into lazy habits of thinking.

Seek knowledge from the cradle to the grave.

Any knowledge that doesn't lead to new questions quickly dies out: it fails to maintain the temperature required for sustaining life.

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.

A cynic is a man who knows the price of everything, and the value of nothing.

It is better to know how to learn than to know.

God created man in His own image, says the Bible; philosophers reverse the process: they create God in theirs.

A witty saying proves nothing.

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.

Physics is like sex: sure, it may give some practical results, but that's not why we do it.

You can never be overdressed or overeducated.

What sculpture is to a block of marble, education is to a human soul.