"A well-spent day brings happy sleep."
"As a well-spent day brings happy sleep, so a life well spent brings happy death."
"Life is pretty simple: You do some stuff. Most fails. Some works. You do more of what works. If it works big, others quickly copy it. Then you do something else. The trick is the doing something else."
"Where there is shouting, there is no true knowledge."
"All our knowledge has its origins in our perceptions."
"Life well spent is long."
