“The pessimist complains about the wind; the optimist expects it to change; the realist adjusts the sails.”
“Pessimistic" is a word for "realistic" that optimists use to make themselves feel better (about their unrealisticness).”
“You cannot change the wind, but you can adjust the sails.”
“When you can’t change the direction of the wind — adjust your sails”
“I can’t change the direction of the wind, but I can adjust my sails to always reach my destination.”
“Pessimists are usually right and optimists are usually wrong but all the great changes have been accomplished by optimists.”