Ten thousand difficulties do not make one doubt.

If we insist on being as sure as is conceivable... we must be content to creep along the ground, and never soar.

If we are intended for great ends, we are called to great hazards.

In this world no one rules by love; if you are but amiable, you are no hero; to be powerful, you must be strong, and to have dominion you must have a genius for organizing.

I've had one very bad ankle injury but otherwise I've been incredibly lucky with my fitness. I've worked hard at it and I've always been fit even compared to other players. That sustains you through various parts of your career, but I am 36.

Energy use is merely a means to many rewarding ends: economic security, education, health.

Although the elusive 'cure' may be a distant dream, understanding the true nature of cancer will enable it to be better controlled and less menacing.

My parents have always been supportive. I come from a very simple middle class family, where the upbringing is very traditional. So for them to give me the kind of freedom to exercise my choices is very fortunate for me.