What you know you know. What you don't know, you don't know. This is knowledge.

If you don't know how to live, why wonder about death?

To know it is not as good as to love it, and to love it is not as good as to take delight in it.

To prefer it is better than to only know it. To delight in it is better than merely to prefer it.

Better than the one who knows what is right is the one who loves what is right.

To know and not do, is to not yet know.

When you are ignorant about something, to know that you are ignorant about it - that is knowledge.

If you don't know the life yet, how could be possible for you to know the death?

Don't worry that other people don't know you; worry that you don't know other people.