We are what we think we are
Do not be angry with me if I tell you the truth
By all implies marry if you get a great wife/husband, you are going to be pleased. If you get a bad a single, you are going to become a philosopher.
A multitude of books distracts the mind.
I know nothing but the certainty of my own ignorance.
All that I know is nothing - I'm not even sure of that.