The only way to discover the limits of the possible is to go beyond them into the impossible.

The only limit to our realization of tomorrow will be our doubts of today.

I don't let the world change my smile.

Writing is a way of speaking without being interrupted.

The world is full of people who have never, since childhood, met an open doorway with an open heart.

每一桩丑闻的基础都建立在不道德的必然性上。

Innovation requires both fundamental research and practical application.

杀死他的父亲然后奖赏他的儿子，与吃他的儿子然后再奖赏他的父亲有什么不同呢？ 

The future of coal is bright if we fight for it.

The heart is a fragile thing, but it is also the source of our greatest strength.

The man who is fit to handle pig iron is not fit to handle the management of pig iron.