It is not only for what we do that we are held responsible, but also for what we do not do.

Nobody can do everything, but everybody can do something.

The world has the habit of making room for the man whose actions show that he knows where he is going.

You cannot step twice into the same river, for other waters are continually flowing in.

Excellence is to do a common thing in an uncommon way.

No matter how hard the past, you can always begin again.

I begin with an idea and then it becomes something else.

Whoever is happy will make others happy, too.

It is impossible to feel grateful and depressed in the same moment.

Progress always involves risks. You can’t steal second base and keep your foot on first.