- "We are what we repeatedly do. Excellence, then, is not an act but a habit." –Aristotle
- "Habit is the intersection of knowledge, motivation, and ability." –Charles Duhigg
- "The chains of habit are too weak to be felt until they are too strong to be broken." –Samuel Johnson
- "A man may break a habit of forty years, but not of forty minutes." –Mark Twain
- "Bad habits are like a comfortable bed, easy to get into, but hard to get out of." –William Makepeace Thackeray
- "Sow thought, reap action; sow action, reap habit; sow habit, reap character; sow character, reap destiny." –James Allen
- "Habits are like invisible threads that weave our actions into our identity. They are the silent forces that shape who we are." –Charles Duhigg
- "Habits can either be our greatest allies or our most formidable foes. It all depends on how we use them." –Brendon Burchard
- "Habits may be good or bad, but in general they are acts done from habit, and not as the result of design." –Thomas Aquinas
- "The best way to predict the future is to create it." –Peter Drucker