Niccolo Machiavelli

"Whosoever desires constant success must change his conduct with the times."

"There is nothing more difficult to take in hand, more perilous to conduct, or more uncertain in its success, than to take the lead in the introduction of a new order of things."

"Never was anything great achieved without danger."

"War is just when it is necessary; arms are permissible when there is no hope except in arms."

"Whosoever desires constant success must change his conduct with the times."