The deeds you do may be the only sermon some persons will hear today.

No great discovery was ever made without a bold guess.

If you don't like the road you're walking, start paving another one.

When I give, I give myself.

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.

Life isn't about finding yourself. Life is about creating yourself.

Only the wisest and stupidest of men never change.

Sincerity and truth are the basis of every virtue.

A man can't soar too high, when he flies with his own wings.

This is one small step for a man, one giant leap for mankind.

You see things; you say, 'Why?' But I dream things that never were; and I say 'Why not?

The man with no imagination has no wings.

The expectations of life depend upon diligence; the mechanic that would perfect his work must first sharpen his tools.

The fact that the great scientist believed in flying machines was the one thing that encouraged us to begin our studies.

Whatever you are, be a good one.

Every problem has in it the seeds of its own solution. If you don't have any problems, you don't get any seeds.

I hated every minute of training, but I said, 'Don't quit. Suffer now and live the rest of your life as a champion'.

It may have been in pieces, but I gave you the best of me.

Don't find fault, find a remedy; anybody can complain

You are not here merely to make a living. You are here in order to enable the world to live more amply, with greater vision, with a finer spirit of hope and achievement. You are here to enrich the world, and to impoverish yourself if you forget the errand.

In a day, when you don't come across any problems - you can be sure that you are travelling in a wrong path.