“When we do something nice for someone, a ‘thank you’ and a smile is nice to receive. And, in many parts of human culture, it’s a bit expected. But when something goes wrong, if we drop a plate or miss a turn or make someone late, it’s particularly delightful and memorable if we are greeted warmly instead of stomped on. The moments when it’s the most difficult to be kind are the moments where it matters the most.”

Seth Godin