The full use of your powers along lines of excellence. (definition of happiness by John F. Kennedy)

Life is pleasant.Death is peaceful.It’s the transition that’s troublesome. (Isaac Asimov)

Only two things are infinite, the universe and human stupidity, and I’m not sure about the former. (Albert Einstein)

All truth passes through three stages. First, it is ridiculed.Second, it is violently opposed. Third, it is accepted as beingself-evident. (Arthur Schopenhauer)