Each friend represents a world in us, a world possibly not born until they arrive, and it is only by this meeting that a new world is born.

Imagination is more important than knowledge.

The only limit to your impact is your imagination and commitment.

When one door of happiness closes, another opens.

Pure mathematics is, in its way, the poetry of logical ideas.

To be a person is to have a story to tell.

To forgive is to set a prisoner free and realize that prisoner was you.