To be conscious that we are perceiving or thinking is to be conscious of our own existence.

There are still two forms besides democracy and oligarchy; one of them is universally recognized and included among the four principal forms of government, which are said to be (1) monarchy, (2) oligarchy, (3) democracy, and (4) the so-called aristocracy or government of the best. But there is also a fifth, which retains the generic name of polity or constitutional government.

A period may be defined as a portion of speech that has in itself a beginning and an end, being at the same time not too big to be taken in at a glance

Two characteristic marks have above all others been recognized as distinguishing that which has soul in it from that which has not - movement and sensation.

It is likely that unlikely things should happen

Salt water when it turns into vapour becomes sweet, and the vapour does not form salt water when it condenses again. This I know by experiment. The same thing is true in every case of the kind: wine and all fluids that evaporate and condense back into a liquid state become water. They all are water modified by a certain admixture, the nature of which determines their flavour.

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.