I love those who can smile in trouble...

The present is theirs; the future, for which I really worked, is mine.

Isn't it astonishing that all these secrets have been preserved for so many years just so we could discover them!

Nobody can hurt me without my permission.

Plan your work - work your plan. Lack of system produces that 'I'm swamped' feeling.

The people who were trying to make this world worse are not taking the day off. Why should I?

Lend yourself to others, but give yourself to yourself.

Above all things, respect yourself.

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

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.

The way to become rich is to put all your eggs in one basket and then watch that basket.

The man with no imagination has no wings.

I am not what happened to me, I am what I choose to become.

A painter should begin every canvas with a wash of black, because all things in nature are dark except where exposed by the light.

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

The world is the great gymnasium where we come to make ourselves strong.

Stand up to your obstacles and do something about them. You will find that they haven't half the strength you think they have.

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

Out of your vulnerabilities will come your strength.

People who say it cannot be done should not interrupt those who are doing it.

Happiness depends more on the inward disposition of mind than on outward circumstances.