It's hard to drive at the limit, but it's harder to know where the limits are.

I was taught that everything is attainable if you are prepared to give up, to sacrifice, to get it. Whatever you want to do, you can do it, if you want it badly enough, and I do believe that. I believe that if I wanted to run a mile is four minutes I could do it. I would have to give up everything else in my life, but I could run a mile in four minutes. I believe that if a man wanted to walk on water and was prepared to give up everything else in life, he could do that.

It's hard to drive at the limit, but it's harder to know where the limits are.

It is necessary to relax your muscles when you can. Relaxing your brain is fatal.

The main thing is to be honest with yourself, know and recognize your limits and attain maximum achievement within them. I would for example get more satisfaction from climbing Snowdon, which I know I could, than from attempting Everest, which I couldn't.

If God had meant for us to walk, why did he give us feet that fit car pedals?

I believe that if a man wanted to walk on water, and was prepared to give up everything in life, he could do it.