They are not monuments, but footprints. A monument only says, 'At least I got this far,' while a footprint says, 'This is where I was when I moved again.'

你必须有一个梦想，这样你才能在早上起床。

经验是一所好学校，但学费很高。

Success is walking from failure to failure with no loss of enthusiasm.

意识的元素要通过实验程序来分离。