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.

You can never be overdressed or overeducated.

Language is courage: the ability to conceive a thought, to speak it, and by doing so to make it true.

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

Don't learn to do, but learn in doing.

Evil being the root of mystery, pain is the root of knowledge.

The knowledge of all things is possible

The only true wisdom is in knowing you know nothing.

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

Education is the ability to listen to almost anything without losing your temper or your self-confidence.

I cannot live without books.

Science is what we have learned about how to keep from fooling ourselves.

I like poems you can tack all over with a hammer and there are no hollow places.

Opinion is the medium between knowledge and ignorance.

Learning never exhausts the mind.

Knowledge, Action, Devotion are complementary to each other.

To every action there is always an equal and opposite or contrary, reaction

Know what you are talking about.

The man who is fond of books is usually a man of lofty thought, and elevated opinions.

The task of a writer is not to solve the problem but to state the problem correctly.