The following comes from the book "The Wisdom and Teachings of Stephen R. Covey" --
"If you want to be trusted, be trustworthy."
"To retain the trust of those who are present, be loyal those who are absent."
"People instinctively trust those whose personality is founded upon correct principles."
"Trust is the highest form of human motivation."
"Trust it the glue of life. It's the most essential ingredient in effective communication. It's the foundational principle that holds all relationships together."
The following is one of my favorites from Covey and one that I've share with many players and teams:
"We all know what a financial bank account is. We make deposits into it and build up reserve from which we can make withdrawals when we need to. An Emotional Bank Account is a metaphor that describes the amount of trust that's been built up in a relationship. It's the feeling of safeness you have with another human being. If I make deposits into an Emotional Bank Account with you through courtesy, kindness, honesty, and keeping my commitments to you, I build up reserve."