Be alone, that is the secret of invention; Be alone, that is when ideas are born
Surely silence can sometimes be the most eloquent reply
Call no man happy till he is dead
I closed my mouth and spoke to you in a hundred silent ways
All of humanity's problems stem from man's inability to sit quietly in a room alone
I only went out for a walk and finally concluded to stay out till sundown, for going out, I found, was really going in
