All difficult things have their origin in that which is easy, and great things in that which is small.

There is no pain so great as the memory of joy in present grief.

Believe deep down in your heart that you're destined to do great things.

Beware of little expenses. A small leak will sink a great ship.

To accomplish great things, we must not only act, but also dream not only plan, but also believe.

Most people say that it is the intellect which makes a great scientist. They are wrong: it is character.

My success was not based so much on any great intelligence but on great common sense.

The greatest good you can do for another is not just to share your riches but to reveal to him his own.

A great part of courage is the courage of having done the thing before.

Every happening, great and small, is a parable whereby God speaks to us, and the art of life is to get the message.