1518He explains in his audio clip that his quote comes from an email sent to him and his boss by a senior client of theirs.
He says: It came at a time when I didnt have a lot of confidence, didnt really believe in myself, but this feedback really meant a lot to me. It helped me regain my confidence, the email helped me get a promotion
"Im now going to take it on as a personal mantra, because if you know your stuff then you can speak your mind. Taken in Regent Street, London, UK.