Science is not only compatible with spirituality; it is a profound source of spirituality.

I never came upon any of my discoveries through the process of rational thinking.

Going to war without France is like going deer hunting without an accordion. You just leave a lot of useless, noisy baggage behind.

Wise sayings often fall on barren ground; but a kind word is never thrown away.

Say all you have to say in the fewest possible words, or your reader will be sure to skip them; and in the plainest possible words or he will certainly misunderstand them.

148. One who does not realize his own value is condemned to utter failure. (Every kind of complex, superiority or inferiority is harmful to man).

205. A greedy man will always find himself in the shackles of humility.

The sin which makes you sad and repentant is more liked by Allah than the good deed which turns you arrogant.

We dance in a circle and suppose, while the secret sits in the middle and knows.

Expose yourself to your deepest fear; after that, fear has no power, and the fear of freedom shrinks and vanishes. You are free.