When something is important enough, you do it even if the odds are not in your favor

A journey of a thousand miles begins with a single step.

I want you to be concerned about your next-door neighbor. Do you know your next-door neighbor?

Nothing could be worse than the fear that one had given up too soon, and left one unexpended effort that might have saved the world.

It is not fair to ask of others what you are not willing to do yourself.

Science is a wonderful thing if one does not have to earn a living at it.

I have decided to stick with love. Hate is too great a burden to bear.