“As I don’t know about tomorrow, I never save the best for later.” — Paulo Coelho

“Don’t worry about people from your past, there’s a reason why they didn’t make it to your future.” — Adam Lindsay Gordon

“Be someone who makes someone else look forward to tomorrow.” — Anonymous

“Staircase wit – thinking of the perfect retort too late, i.e. after you have left the room.” — Based on the Urban Dictionary