一句话，先是太胆小，明知错的事却不敢不做；后来也还是太胆小，明知对的事却不敢去做。
最近也是最远的是东西方向，最深也是最浅的是清澈的溪水。最高也是最明亮的是日月，最亲近也是最疏远的是夫妻关系。
Talent without working is nothing.
I am among those who think that science has great beauty.
The greatest danger to American agriculture is the loss of the family farm.
To serve is beautiful, but only if it is done with joy and a whole heart and a free mind.
在每个真正的艺术家心中，都有一个相信奇迹的孩子。
The law of nature is the fundamental wisdom.