People can be divided into these types: strangers, acquaintances, familiar people, friends, and close friends. True friendship isn't about compliments to your face, but whether you're mentioned when they talk about friends behind your back.

人分这么几种：不认识，认识，熟人，朋友，知心朋友。朋友不在当面表白，而是背后说起朋友的时候，是否提到过你。

刘震云

命运的变化犹如月之圆缺，对智者毫无妨害。

富兰克林

当共精进，誓济群伦，及尔童年，早发大心。

周秉清

说不定自己再不能成为一个地道的人了。我犯过几个错误，但实际上那甚至连错误都不是。与其说是错误，或许莫如说是我自身与生俱来的倾向性东西。

村上春树

We choose to go to the moon in this decade and do the other things， not because they are easy， but because they are hard， because that goal will serve to organize and measure the best of our energies and skills， because that challenge is one that we are willing to accept， one we are unwilling to postpone， and one which we intend to win， and the others， too.

我们决定在这十年间登上月球并实现更多，并非它们轻而易举，而正是因为它们困难重重。因为这个目标将促进我们实现最佳的组织并测试我们顶尖的技术和力量，因为这个挑战我们乐于接受，因为这个挑战我们不愿推迟，因为这个挑战我们志在必得，其他的挑战也是如此。

肯尼迪

道德能帮助人类社会升到更高的水平，使人类社会摆脱劳动剥削制。

列宁

人有过喜谈之，存一恕心者少。己有过恶，闻之漫无悔心者多。若以恕己之心恕人，是谓大公，以责人之心责己，是谓大勇。任事者当置身利害之外，建言者当设身利害之中。

曾国藩

这种我们能创造一个每个人的能力都忠实地被分级，好的就到顶端，坏的就到底部，而且保证过程毫无差错，这是不可能的。这世上有太多偶然的契机，不同的机运，出身，疾病，从天而降的意外等等，我们却无法将这些因素分级，无法完全忠实的将人分级。

The idea that we will make a society where literally everybody is graded, the good at the top, bad at the bottom, exactly done as it should be, is impossible. There are simply too many random factors: accidents, accidents of birth, accidents of things dropping on people's heads, illnesses, etc. We will never get to grade them, never get to grade people as they should.