There is no illness of the body except for the mind

Often when looking at a mass of things for sale, he would say to himself, 'How many things I have no need of!'

It is better to suffer an injustice than to commit one

Fellow citizens, why do you burn and scrape every stone to gather wealth and take so little care of your children to whom you must one day relinquish all?

My divine sign indicates the future to me.

I was afraid that by observing objects with my eyes and trying to comprehend them with each of my other senses I might blind my soul altogether.

Life without enquiry is not worth living for a man.