Leave your luck while still winning.

Self knowledge is the beginning of self improvement.

Help others solve their problems; standing farther away, you can often see matters more clearly than they do. . . The greatest service you can render someone else is helping him or her help themselves.

No' and 'Yes' are words quickly said, but they need a great amount of thought before you utter them.

None is so perfect that he does not need at times the advice of others.

Never open the door to a lesser evil, for other and greater ones invariably slink in after it.

Nothing arouses ambition so much in the heart as the trumpet-clang of another's fame.