Tao Te Ching

“It must be remembered that there is nothing more difficult to plan, more doubtful of success, nor more dangerous to manage than a new system. For the initiator has the enmity of all who would profit by the preservation of the old institution and merely lukewarm defenders in those who gain by the new ones.”

— Machiavelli 1469 – 1527 CE
(Niccolò Machiavelli)
from The Prince