"In the school of life, you can learn by failing."

Ernst Ferstl
Austrian teacher, poet and aphorist

"Those who do not think about the future will soon be worried."

Konfuzius
Chinese philosopher (571-479 BC)

"The people who shift something from today to tomorrow are the same ones who have shifted something from yesterday to today."

Peter Ustinov
Actor

"The annoying thing about anger is that you harm yourself without being useful to others."

Kurt Tucholsky
Writer

"It is better to be disturbed by doubts than to dwell too long in error."

Alessandro Manzoni
Italian poet