The ordinary surroundings of life which are esteemed by men (as their actions testify) to be the highest good, may be classed under the three heads - Riches, Fame, and the Pleasures of Sense: with these three the mind is so absorbed that it has little power to reflect on any different good.

Nature is satisfied with little; and if she is, I am also.

A definition, if it is to be called perfect, must explain the inmost essence of a thing, and must take care not to substitute for this any of its properties. I…

You seem to wish to employ reason, and ask me, 'How I know that my philosophy is the best among all that have ever been taught in the world, or are being taugh…