It's all to do with the training: you can do a lot if you're properly trained.

Once you learn to quit, it becomes a habit.

Winners and losers aren't born, they are the products of how they think

Courage is the thing. All goes if courage goes.

Dare to be free, dare to go as far as your thought leads, and dare to carry that out in your life.

Perseverance and spirit have done wonders in all ages.

You have to make the rules, not follow them.

We are all in the gutter, but some of us are looking at the stars.

People who are unable to motivate themselves must be content with mediocrity, no matter how impressive their other talents.

I trust that everything happens for a reason, even if we are not wise enough to see it.

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

Insanity is doing the same thing over and over again and expecting different results.

I don't think necessity is the mother of invention. Invention ... arises directly from idleness, possibly also from laziness. To save oneself trouble.

After all is said and done, more is said than done.

One man with courage is a majority.

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.

Memories of our lives, of our works and our deeds will continue in others.

The superior man thinks only of virtue; the common man thinks only of comfort.

Somewhere, something incredible is waiting to be known.

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

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.