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The optimist thinks this is the best of all possible worlds. The pessimist knows it.
乐观主义者认为这是所有可能世界中最好的一个。悲观主义者知道确实如此。
罗伯特·奥本海默
Ignorance is never better than knowledge.
无知永远不比知识更好。
恩里科·费米
The fundamental point in fabricating a chain reacting pile is to have a proper arrangement of materials.
制造链式反应堆的基本点是正确安排材料。
恩里科·费米
The success of the first pile is attributable to a happy combination of the virtues of the American way of life with the Italian temperament.
第一个反应堆的成功归功于美国生活方式的美德与意大利气质的愉快结合。
恩里科·费米
The fundamental point in fabricating a chain reacting machine is of course to see to it that each fission produces a certain number of neutrons and some of these neutrons are again effective in producing fission.
制造链式反应机器的基本点当然是确保每次裂变产生一定数量的中子,其中一些中子再次有效地产生裂变。
恩里科·费米
After knowledge of the physical forces, their laws and their mutual relations, comes the question of their origin.
在了解物理力、它们的规律及相互关系之后,接下来是它们起源的问题。
詹姆斯·普雷斯科特·焦耳
After knowledge of the fact that heat is a motion of particles, it is easy to arrive at the conclusion that this motion must be subject to the general laws of mechanics.
在认识到热是粒子运动后,很容易得出结论:这种运动必然遵循力学的一般规律。
詹姆斯·普雷斯科特·焦耳
The phenomena of nature, whether mechanical, chemical, or vital, consist almost entirely in a continual conversion of attraction through space, living force, and heat into one another.
自然界的现象,无论是机械的、化学的还是生命的,几乎完全在于通过空间、活力和热之间的持续相互转化。
詹姆斯·普雷斯科特·焦耳
It is evident that an acquaintance with natural laws means no less than an acquaintance with the mind of God therein expressed.
显然,了解自然法则无异于了解其中表达的上帝的思想。
詹姆斯·普雷斯科特·焦耳
After knowledge of the fact that heat is a mode of motion, no one can entertain any doubt of the convertibility of heat into mechanical effect.
在认识到热是运动的一种形式后,没有人会怀疑热可以转化为机械效应。
詹姆斯·普雷斯科特·焦耳
The grand agents of nature are, for the most part, invisible to us.
自然界的主要力量大多对我们不可见。
詹姆斯·普雷斯科特·焦耳
The diesel engine is the most efficient prime mover known today.
柴油发动机是当今已知效率最高的原动机。
鲁道夫·狄塞尔
The internal combustion engine is the most important invention of our time.
内燃机是我们这个时代最重要的发明。
鲁道夫·狄塞尔
The use of vegetable oils for engine fuels may seem insignificant today, but such oils may become, in the course of time, as important as petroleum and the coal-tar products of the present time.
植物油作为发动机燃料的使用在今天看来可能微不足道,但这些油或许会随着时间的推移变得像石油和煤焦油产品一样重要。
鲁道夫·狄塞尔
The fact that fat oils from vegetable sources can be used may seem insignificant today, but such oils may perhaps become in course of time of the same importance as some natural mineral oils and the tar products are now.
植物油脂肪油的使用在今天看来可能微不足道,但这些油或许会随着时间的推移变得像某些天然矿物油和焦油产品一样重要。
鲁道夫·狄塞尔
The diesel engine can be fed with vegetable oils and would help considerably in the development of agriculture of the countries which use it.
柴油发动机可以使用植物油作为燃料,这将极大地促进使用该技术的国家的农业发展。
鲁道夫·狄塞尔
The value of an idea lies in the using of it.
一个想法的价值在于它的使用。
托马斯·爱迪生
There is no substitute for hard work.
没有什么可以替代努力工作。
托马斯·爱迪生
The three great essentials to achieve anything worth while are: Hard work, Stick-to-itiveness, and Common sense.
实现任何有价值的事情的三个重要要素是:努力工作、坚持不懈和常识。
托马斯·爱迪生
The improver of natural knowledge absolutely refuses to acknowledge authority, as such. For him, scepticism is the highest of duties; blind faith the one unpardonable sin.
自然知识的改进者绝对拒绝承认权威。对他来说,怀疑主义是最高的责任;盲目信仰是不可饶恕的罪过。
詹姆斯·瓦特
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