Don't complain about the snow on your neighbor's roof when your own doorstep is unclean.

Great spirits have always encountered violent opposition from mediocre minds.

Look up at the stars and not down at your feet. Try to make sense of what you see, and wonder about what makes the universe exist. Be curious.

My dear friend, clear your mind of cant.

If we want a free and peaceful world, if we want to make the deserts bloom and man grow to greater dignity as a human being-we can do it.

The great secret of true success, of true happiness, is this: the man or woman who asks for no return, the perfectly unselfish person, is the most successful.

We delight in the beauty of the butterfly, but rarely admit the changes it has gone through to achieve that beauty.

Whatever lifts the corners of your mouth, trust that.

Once you have tasted flight, you will forever walk the earth with your eyes turned skyward, for there you have been, and there you will always long to return.

You don't need a weather man to know which way the wind blows

I believe that if you show people the problems and you show them the solutions they will be moved to act.

Too much sanity may be madness - and the maddest of all is to see life as it is and not as it should be.

You're never as good as everyone tells you when you win, and you're never as bad as they say when you lose.

Whether you think you can, or you think you can't - you're right.

Work gives you meaning and purpose and life is empty without it.

When you're at the end of your rope, tie a knot and hold on

A sudden dart when a little over a hundred feet from the end of the track, or a little over 120 feet from the point at which it rose into the air, ended the flight.

Great things are not done by impulse, but by a series of small things brought together.

You got to get it while you can.

To succeed in your mission, you must have single-minded devotion to your goal.

The best way out is always through.