If the whole world depends on today's youth, I can't see the world lasting another 100 years.

To be uncertain is to be uncomfortable, but to be certain is to be ridiculous.

One should never do wrong in return, nor mistreat any man, no matter how one has been mistreated by him.

Do not be angry with me if I tell you the truth

He is a man of courage who does not run away, but remains at his post and fights against the enemy.

Not life, but good life, is to be chiefly valued." "It is not living that matters, but living rightly. The unexamined life is not worth living.

I desire only to know the truth, and to live as well as I can...And, to the utmost of my power, I exhort all other men to do the same...I exhort you also to take part in the great combat, which is the combat of life, and greater than every other earthly conflict.