Avoid compulsion and let early education be a matter of amusement. Young children learn by games; compulsory education cannot remain in the soul.

I have this tattooed on my left side! I love the saying and it's a perfect description of Karma, don't judge/discriminate and don't do to someone what you wouldn't want done to you.

But he who has been earnest in the love of knowledge and of true wisdom, and has exercised his intellect more than any other part of him, must have thoughts immortal and divine. If he attain truth, and in so far as human nature is capable of sharing in immortality, he must altogether be immortal.

Madness comes from God, whereas sober sense is merely human.

For this feeling of wonder shows that you are a philosopher, since wonder is the only beginning of philosophy.

He, O men, is the wisest, who, like Socrates, knows that his wisdom is in truth worth nothing.

I exhort you also to take part in the great combat, which is the combat of life, and greater than every other earthly conflict.