Today I will do what others won't, so tomorrow I can do what others can't.

Yesterday is gone. Tomorrow has not yet come. We have only today. Let us begin.

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

Happiness is not something ready made. It comes from your own actions.

Good actions give strength to ourselves and inspire good actions in others.

I have noticed even people who claim everything is predestined, and that we can do nothing to change it, look before they cross the road.

I have been impressed with the urgency of doing. Knowing is not enough, we must apply. Being willing is not enough, we must do.

Be not afraid of growing slowly, be afraid only of standing still.

My goal is simple. It is a complete understanding of the universe, why it is as it is and why it exists at all.