It is a disgrace to grow old through sheer carelessness before seeing what manner of man you may become by developing your bodily strength and beauty to their highest limit.

We are what we think we are

I must first know myself, as the Delphian inscription says; to be curious about that which is not my concern, while I am still in ignorance of my own self, would be ridiculous. And therefore I bid farewell to all this; the common opinion is enough for me. For, as I was saying, I want to know not about this, but about myself: am I a monster more complicated and swollen with passion than the serpent Typho, or a creature of a gentler and simpler sort, to whom Nature has given a diviner and lowlier destiny?

The beginning of wisdom is a definition of terms.

Whatever authority I may have rests solely on knowing how little I know.

Through your rags I see your vanity.

If we pursue our habit of eating animals, and if our neighbour follows a similar path, will we need to go to war against our neighbour to secure greater pasturage, because ours will not be enough to sustain us, and our neighbour will have a similar need to wage war on us for the same reason.