We could never learn to be brave and patient, if there were only joy in the world

Books are for people who wish they were somewhere else.

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.

Dare to think for yourself.

If the facts don't fit the theory, change the facts.

For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled.

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

If you're not learning while you're earning, you're cheating yourself out of the better portion of your compensation.

All sciences are vain and full of errors that are not born of Experience, the mother of all Knowledge.

Men are born ignorant, not stupid. They are made stupid by education.

Civilization is a race between disaster and education.

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.

What is freedom of expression? Without the freedom to offend, it ceases to exist.

I am a part of everything that I have read.

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

Reading furnishes the mind only with materials of knowledge; it is thinking that makes what we read ours.

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.

Free the child's potential, and you will transform him into the world.

A thought is an idea in transit.

An investment in knowledge pays the best interest.