We don't inherit the earth from our ancestors; we borrow it from our children.
一旦不再抱那么大的希望,我们就不会再这么愤怒了。《哲学的慰藉》
The natural effort of every individual to better his own condition, when suffered to exert itself with freedom and security, is so powerful a principle that it is alone, and without any assistance, not only capable of carrying on the society to wealth and prosperity but of surmounting a hundred impertinent obstructions with which the folly of human laws too often encumbers its operations.
科学问题有意识的解决给我们提出的最直接且在某种意义上最重要的问题,是对结果的准确阐述。