Many people have written about trust in human relationships. I have collected some quotes on the topic and list some of my favorites below:

Our distrust is very expensive. –Ralph Waldo Emerson

The only way to make a man trustworthy is to trust him. –Henry L. Stimson

He who mistrusts most should be trusted least. –Theognis

Whenever the people are well–informed, they can be trusted with their own government. – Thomas Jefferson

Trust men and they will be true to you; treat them greatly and they will show themselves great. – Ralph Waldo Emerson

Those who trust us, educate us. — George Eliot

Mistrust begets mistrust. Trust begets accomplishment. –-Tao Te Ching

For it is mutual trust, even more than mutual interest that holds human associations together. –H. L. Mencken

Relationships of trust depend on our willingness to look not only to our own interests, but also the interests of others. –Peter Farquharson