The secret of genius is to carry the spirit of the child into old age, which means never losing your enthusiasm.

You lose nothing when fighting for a cause ... In my mind the losers are those who don't have a cause they care about.

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.

People are capable, at any time in their lives, of doing what they dream of.

Scar tissue is stronger than regular tissue. Realize the strength, move on.

I confess that in 1901 I said to my brother Orville that man would not fly for fifty years.

For a man who no longer has a homeland, writing becomes a place to live.

No leader can be too far ahead of his followers.

It is only when the mind is free from the old that it meets everything anew, and in that there is joy.

Employ your time in improving yourself by other men's writings so that you shall come easily by what others have labored hard for.

Make today worth remembering.

You have to dream before your dreams can come true.

Don't fear failure. Not failure, but low aim, is the crime. In great attempts it is glorious even to fail.

You must find the place inside yourself where nothing is impossible.

I hope our wisdom will grow with our power, and teach us that the less we use our power the greater it will be.

As a child of God, I am greater than anything that can happen to me.

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

I just couldn't take school seriously: I had this guitar neck with four frets which I kept hidden under the desk. It had strings on it so I would practice my chord shapes under the desk and that's about all I did at school.

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

I will never be by violence constrained to do anything.

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