Failure is not our only punishment for laziness; there is also the success of others.
The crisis of today is the joke of tomorrow.
The past cannot be changed. The future is yet in your power.
Too much sanity may be madness - and the maddest of all is to see life as it is and not as it should be.
When everything seems to be going against you, remember that the airplane takes off against the wind, not with it ....
Knowing what's right doesn't mean much unless you do what's right.
After climbing a great hill, one only finds that there are many more hills to climb.
It's not the load that breaks you down, it's the way you carry it.
A man should look for what is, and not what he thinks should be.
Neither worse then or better is a thing made by being praised.
I am always doing that which I can not do, in order that I may learn how to do it.
Only when I fall do I get up again.
I will never be by violence constrained to do anything.
Life is like riding a bicycle. To keep your balance, you must keep moving.
The fishermen know that the sea is dangerous and the storm terrible, but they have never found these dangers sufficient reason for remaining ashore.
Humans have come into being for the sake of each other, so either teach them, or learn to bear them.
When you're at the end of your rope, tie a knot and hold on
I can never stand still. I must explore and experiment. I am never satisfied with my work. I resent the limitations of my own imagination.
It's not what you look at that matters, it's what you see.
One person with a belief is equal to a force of ninety-nine who have only interests.