For the first half of your life, people tell you what you should do; for the second half, they tell you what you should have done.

在你的前半生，人们会告诉你应该做什么;在下半场，他们会告诉你应该怎么做。

For the first time in human evolution, the individual life is long enough, and the cultural transformation swift enough, that the individual mind is now a constituent player in the global transformation of human culture.

在人类进化中，个体生命第一次足够长，文化转型也足够快，以至于个体意识现在成为了全球人类文化转型的一个组成部分。

For the first time in my life I feel important. I'd like to have five babies.

我有生以来第一次感到自己很重要。我想要五个孩子。

For the first time, it struck me that when Denver said he'd be my friend for life, he meant it-for better or for worse.

我第一次意识到，当丹芙说他要和我做一辈子的朋友时，他是认真的——无论好坏。

For the life in them he loved most living things, But a tree chiefly.

他最喜爱的是树的生命，而不是树的生命。

For the meaning of life differs from man to man, from day to day and from hour to hour. What matters, therefore, is not the meaning of life in general but rather the specific meaning of a person's life at a given moment.

因为生命的意义因人而异，因日而异，因时而异。因此，重要的不是生活的一般意义，而是一个人在某一特定时刻的生活的具体意义。

For the rest of my life, I will search for moments full of you.

在我的余生里，我会寻找充满你的时刻。

For the rest of my life, I'll dream of hearing your voice breathe my name.

在我的余生里，我将梦想着听到你的声音呼出我的名字。

For the things we have to learn before we can do them, we learn by doing them.

因为在我们能做之前我们必须学习的东西，我们通过做来学习。

For there is a wind or a ghost of wind in all books echoing the life there, a high wind that fills the tubes of the ear until we think we hear a wind, actual.

因为在所有的书中都有风或鬼风在那里回荡着生命的声音，一股大风吹过我们的耳管，直到我们觉得我们听到了风，真的。

For this generation, ours, life is nuclear survival, liberty is human rights, the pursuit of happiness is a planet whose resources are devoted to the physical and spiritual nourishment of its inhabitants.

对我们这一代人来说，生命是核的生存，自由是人权，追求幸福是一个其资源用于滋养其居民的物质和精神的星球。

For those who believe, no proof is necessary. For those who don't believe, no proof is possible.

对于那些相信的人，不需要证据。对于那些不相信的人，没有证据是可能的。

For we are all walking each other to our deaths, and the journey between footsteps makes up our lives.

因为我们都在走向死亡，而两步之间的旅程构成了我们的生命。

Forecasts may tell you a great deal about the forecaster; they tell you nothing about the future.

天气预报可以告诉你很多关于天气预报员的事情;他们对未来一无所知。

Forever is a long time and time has a way of changing things.

永远是一段很长的时间，而时间是有办法改变事情的。