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.

For it is owing to their wonder that men both now begin and at first began to philosophize... They were pursuing science in order to know, and not for any utilitarian end.

Every man should be responsible to others, nor should any one be allowed to do just as he pleases; for where absolute freedom is allowed, there is nothing to restrain the evil which is inherent in every man.

There is nothing unequal as the equal treatment of unequals.

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.

A man is his own best friend; therefore he ought to love himself best.

Happiness belongs to the self sufficient.