Those who are slaves to their appetites cannot preserve their reason, their memory, or their senses in their full vigour; for a full belly does not produce a fine mind.
As long as a person exercises, exerts himself greatly, does not eat to the point of being overly full, and keeps his bowels soft, illness will not come upon him and his strength will increase.
I eat only what is enough to sustain my life. My food is bread, soup, an egg, and a little meat. And the amount I eat is no more than my body can easily digest.
If you wish to have leisure for your mind, either be a poor man, or resemble a poor man. Study cannot be helpful unless you take pains to live simply; and living simply is voluntary poverty.
The five colors blind the eye. The five tones deafen the ear. The five flavors dull the taste. Racing and hunting madden the mind. Precious things lead one astray. Therefore the sage is guided by what he feels and not by what he sees. He lets go of that and chooses this.
If we could give every individual the right amount of nourishment and exercise, not too little and not too much, we would have found the safest way to health.
There are two sentences inscribed upon the Delphic oracle, hugely accommodated to the usages of man's life: "Know thyself," and "Nothing too much;" and upon these all other precepts depend.
If a man insisted always on being serious, and never allowed himself a bit of fun and relaxation, he would go mad or become unstable without knowing it.