The intelligence consists not only in the knowledge but also in the skill to apply the knowledge into practice.

At his best, man is the noblest of all animals; separated from law and justice he is the worst.

To say of what is that it is not, or of what is not that it is, is false, while to say of what is that it is, and of what is not that it is not, is true.

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.

1 is not prime, by definition. 2 is an unnatural prime, 4 is an unnatural prime, and 6 is an unnatural prime. All other natural primes cannot be unnatural primes.

The greatest injustices proceed from those who pursue excess, not by those who are driven by necessity.

Anyone who has no need of anybody but himself is either a beast or a God.