It is beyond a doubt that all our knowledge begins with experience.

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

Knowledge, Action, Devotion are complementary to each other.

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

I do not know how to teach philosophy without becoming a disturber of the peace.

Study hard what interests you the most in the most undisciplined, irreverent and original manner possible.

I learned very early the difference between knowing the name of something and knowing something.

They say a little knowledge is a dangerous thing, but it's not one half so bad as a lot of ignorance.

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

If one cannot enjoy reading a book over and over again, there is no use in reading it at all.

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.

The only true wisdom is in knowing you know nothing.

The most savage controversies are those about matters as to which there is no good evidence either way.

Human behavior flows from three main sources: desire, emotion, and knowledge

If you want the present to be different from the past, study the past.

The real solution lies in a world in which charity will have become unnecessary.

Courage, conviction and confidence.

The first principle is that you must not fool yourself and you are the easiest person to fool.

Better know nothing than half-know many things.

Education is an ornament for the prosperous, a refuge for the unfortunate.

The delight of opening a new pursuit, or a new course of reading, imparts the vivacity and novelty of youth even to old age.