实现真正自由的唯一途径是通过自律。
The meaning of "knowing" has shifted from being able to remember and repeat information to being able to find and use it.
我相信,只要你站起来并前进,生活就会为你敞开大门。有些事情会激励你继续前进。
可持续性不是一种选择,而是长期成功的必要条件。
以物易物、互通有无的倾向是人类共有的,也是其他动物所没有的。
The past is a foreign country; they do things differently there.