If you prove the cause, you at once prove the effect; and conversely nothing can exist without its cause.

A friend is another I.

It is this simplicity that makes the uneducated more effective than the educated when addressing popular audiences-makes them, as the poets tell us, 'charm the crowd's ears more finely.' Educated men lay down broad general principles; uneducated men argue from common knowledge and draw obvious conclusions.

Concerning the generation of animals akin to them, as hornets and wasps, the facts in all cases are similar to a certain extent, but are devoid of the extraordinary features which characterize bees; this we should expect, for they have nothing divine about them as the bees have.

Those whose days are consumed in the low pursuits of avarice, or the gaudy frivolties of fashion, unobservant of nature's lovelinessof demarcation, nor on which side thereof an intermediate form should lie.

All food must be capable of being digested, and that what produces digestion is warmth; that is why everything that has soul in it possesses warmth.

Truth is a remarkable thing. We cannot miss knowing some of it. But we cannot know it entirely.