An immoderate diet is unhealthy, but a temperate one preserves strength.
Can you really ask what reason Pythagoras had for abstaining from flesh? For my part I rather wonder both by what accident and in what state of soul or mind the first man touched his mouth to gore and brought his lips to the flesh of a dead creature, set forth tables of dead, stale bodies, and ventured to call food and nourishment the parts that had a little before bellowed and cried, moved and lived.
Abstinence is the nurse of the soul.
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.
Excessive eating is like a deadly poison to the body and is a principal cause of all illness.
The food which a temperate man leaves upon his plate is more beneficial than that which a glutton eats.