For one swallow does not make a summer, nor does one day; and so too one day, or a short time, does not make a man blessed and happy.

There is only one condition in which we can imagine managers not needing subordinates, and masters not needing slaves. This condition would be that each (inanimate) instrument could do its own work.

Even that some people try deceived me many times ... I will not fail to believe that somewhere, someone deserves my trust.

The greatest victory is over self.

In the many forms of government which have sprung up there has always been an acknowledgement of justice and proportionate equality, although mankind fail in attaining them, as indeed I have already explained. Democracy, for example, arises out of the notion that those who are equal in any respect are equal in all respects; because men are equally free, they claim to be absolutely equal.

So it is naturally with the male and the female; the one is superior, the other inferior; the one governs, the other is governed; and the same rule must necessarily hold good with respect to all mankind.

...The entire preoccupation of the physicist is with things that contain within themselves a principle of movement and rest.