Life is like riding a bicycle. To keep your balance, you must keep moving.
There are only two ways to live your life. One is as though nothing is a miracle. The other is as though everything is a miracle.
Life is what happens to us while we are making other plans.
If you can't change your fate, change your attitude.
Life shrinks or expands in proportion to one's courage.
How wonderful it is that nobody need wait a single moment before starting to improve the world.