Never pick a fight with an ugly person, they've got nothing to lose.
Each problem that I solved became a rule which served afterwards to solve other problems.
If you don't stand for something you will fall for anything.
Nothing is softer or more flexible than water, yet nothing can resist it.
Don't expect to build up the weak by pulling down the strong.
The experience gathered from books, though often valuable,is but the nature of learning whereas the experience gained from actual life is of the nature of wisdom.
The cure for pain is in the pain.
Whatever it is you're seeking won't come in the form you're expecting.
The heart has its reasons which reason knows not.
The best revenge is to be unlike him who performed the injury.
Those who can not change their minds can not change anything.
The essence of knowledge is, having it, to apply it; not having it, to confess your ignorance.
Don't take tomorrow to bed with you.
If you're happy, don't worry you'll get over it.
One must wait until the evening to see how splendid the day has been.
To a wise and good man the whole earth is his fatherland.
Experience is merely the name men gave to their mistakes.
Think no vice so small that you may commit it, and no virtue so small that you may over look it.
Work is the price which is paid for reputation.
Nothing is as easy as it looks.
Challenges are gifts that force us to search for a new center of gravity. Don't fight them. Just find a new way to stand.