注意力是心灵以清晰生动的形式，从几个同时可能出现的对象或思绪中占据一个。
Attention is the taking possession by the mind, in clear and vivid form, of one out of what seem several simultaneously possible objects or trains of thought.
Courage consists not in hazarding without fear； but being resolutely minded in a just cause.
最深刻的发现往往来自最简单的观察。
最好的代码就是没有代码。
艺术家必须是梦想的编织者。
解释：称赞人不夸大他好的地方，那么听的人心里不痛快；诽谤人不增加他的过错，那么听的人心里不满足。