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

Only those who dare to fail greatly can ever achieve greatly.

Dreams must be heeded and accepted. For a great many of them come true.

To be conscious that you are ignorant of the facts is a great step to knowledge.

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

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

All the great things are simple, and many can be expressed in a single word: freedom, justice, honor, duty, mercy, hope.

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

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

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