The person who is not strong enough gives up at the halfway point - but you are limiting yourself before even starting.

You do not understand even life. How can you understand death?

Reviewing what you have learned and learning anew, you are fit to be a teacher.

To take what you know for what you know, and what you do not know for what you do not know, that is knowledge indeed.

The injury of prodigality leads to this, that he who will not economize will have to agonize.

Let a man be stimulated by poetry, established by the rules of propriety, and perfected by music.

It is not possible for one to teach others who cannot teach his own family.