From 10 Learnings from 10 Years of Brain Pickings by Maria Popova:
Be generous with your time and your resources and with giving credit and, especially, with your words.
It’s so much easier to be a critic than a celebrator. Always remember there is a human being on the other end of every exchange and behind every cultural artifact being critiqued. To understand and be understood, those are among life’s greatest gifts, and every interaction is an opportunity to exchange them.