If a man could have half of his wishes, he would double his troubles.

A scholar who cherishes the love of comfort is not fit to be deemed a scholar.

I mistrust the judgement of every man in a case in which his own wishes are concerned.

One who loses wealth loses much. One who loses a friend loses more. But one who loses courage loses all.

Where there is anger, there is always pain underneath.

An understanding of the natural world is a source of not only great curiosity, but great fulfilment.

If we can really understand the problem, the answer will come out of it, because the answer is not separate from the problem.

The trouble with most of us is that we would rather be ruined by praise than saved by criticism.

Convictions are more dangerous enemies of truth than lies.

Anger begins in folly, and ends in repentance.

It is necessary to keep one's compass in one's eyes and not in the hand, for the hands execute, but the eye judges.

Things which matter most must never be at the mercy of things which matter least.

There are things known and there are things unknown, and in between are the doors of perception.

Bitterness is like cancer. It eats upon the host. But anger is like fire. It burns it all clean.

Although our intellect always longs for clarity and certainty, our nature often finds uncertainty fascinating.

Yesterday is but today's memory and tomorrow is today's dream.

It’s your road and yours alone. Others may walk it with you, but no one can walk it for you.

Gravity is only the bark of wisdom's tree; but it preserves it

Not everything that can be counted counts, and not everything that counts can be counted.

Those who know, do. Those that understand, teach.

I write with experiences in mind, but I don't write about them, I write out of them.