Self-discipline without talent can often achieve astounding results, whereas talent without self-discipline inevitably dooms itself to failure.

Knowledge fills a large brain; it merely inflates a small one.

When you run into someone who is disagreeable to others, you may be sure he is uncomfortable with himself; the amount of pain we inflict upon others is directly proportional to the amount we feel within us.

If the devil could be persuaded to write a bible, he would title it, "You Only Live Once."

The art of living consists in knowing which impulses to obey and which must be made to obey.

History repeats itself, but in such cunning disguise that we never detect the resemblance until the damage is done.

The difference between faith and superstition is that the first uses reason to go as far as it can, and then makes the jump; the second shuns reason entirely — which is why superstition is not the ally, but the enemy, of true religion.