“If you steal from one author, it’s plagiarism; if you steal from many, it’s research.”

The liar's punishment is not in the least that he is not believed, but that he cannot believe anyone else.

Imagination is the language of the soul.

Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.

Silence is a source of great strength.

We are all inclined to judge ourselves by our ideals; others, by their acts.

All difficult things have their origin in that which is easy, and great things in that which is small.