It is my deliberate opinion that the one essential requisite of human welfare in all ways is scientific knowledge of human nature.

我经过深思熟虑后认为，人类福祉的一个基本条件是对人性的科学认识。

It is my nature to thin where others read.

我的天性就是在别人读书的地方瘦下来。

It is not accidental that all phenomena of human life are dominated by the search for daily bread - the oldest link connecting all living things, man included, with the surrounding nature.

并非偶然的是，人类生活的所有现象都是由对日常食物的寻找所主导的——这是连接包括人类在内的所有生物与周围自然的最古老的纽带。

It is not so much for its beauty that the forest makes a claim upon men's hearts, as for that subtle something, that quality of air that emanation from old trees, that so wonderfully changes and renews a weary spirit.

与其说森林的美丽吸引了人们的注意，不如说它的那种微妙之处、从古树中散发出来的那种令人神往的清新空气，使疲惫的心灵得到了惊人的变化和新生。

It is one of the more striking generalizations of biochemistry - which surprisingly is hardly ever mentioned in the biochemical textbooks - that the twenty amino acids and the four bases, are, with minor reservations, the same throughout Nature.

这是生物化学中最引人注目的概括之一——令人惊讶的是，在生物化学教科书中几乎从未提及——二十种氨基酸和四种碱基在自然界中都是一样的，只是保留了一点。

It is the nature of all greatness not to be exact.

所有伟大的本质都是不精确的。

It is the nature of every person to error, but only the fool perseveres in error.

每个人都会犯错误，但只有傻瓜才会坚持错误。

It is the nature of the artist to mind excessively what is said about him. Literature is strewn with the wreckage of men who have minded beyond reason the opinions of others.

艺术家的天性就是过分在意别人对他的评价。文学作品中到处都是一些人的残迹，他们对他人的观点有着超越理性的看法。

It is the nature of truth in general, as of some ores in particular, to be richest when most superficial.

一般说来，真理的本性，特别是对于某些矿石，就是在最肤浅的时候才最丰富。

It is the nature of truth to struggle to the light.

向光明奋斗是真理的本质。

It rarely adds anything to say, "In my opinion" - not even modesty. Naturally a sentence is only your opinion; and you are not the Pope.

“在我看来”，这句话几乎没什么可说的——甚至不谦虚。自然一句话只是你的意见;你又不是教皇。

It really hasn't been demonstrated at any level by any major corporation that it can nurture what is euphemistically called creativity.

任何大公司都没有在任何层面上证明它能培养所谓的创造力。

It seems to be a law of nature that no man, unless he has some obvious physical deformity, ever is loth to sit for his portrait.

这似乎是一个自然规律，没有人，除非他有一些明显的身体残疾，从来没有不愿意坐着为他的画像。

It takes so long to train a physicist to the place where he understands the nature of physical problems that he is already too old to solve them.

把一个物理学家培养到能够理解物理问题本质的程度需要很长时间，以至于他已经老得无法解决这些问题了。

It was a splendid summer morning and it seemed as if nothing could go wrong.

这是一个灿烂的夏日早晨，似乎什么事都不会出错。