The secret of change is to focus all of your energy, not on fighting the old, but on building the new.

Source: The quotation is often misattributed to Greek Philosopher Socrates but this quote is from a character named Socrates who was a gas-station attendant in a book “Way of the Peaceful Warrior” published in the 1980s by Dan Millman. The quote was not from the renowned Greek philosopher, Socrates.