1. Law. a person to whom property or power is entrusted for the benefit of another.
2. Law. of or pertaining to the relation between a fiduciary and his or her principal: a fiduciary capacity; a fiduciary duty.
3. of, based on, or in the nature of trust and confidence, as in public affairs: a fiduciary obligation of government employees.
4. depending on public confidence for value or currency, as fiat money.
"How is it that hardly any major religion has looked at science and concluded, 'This is better than we thought! The Universe is much bigger than our prophets said, grander, more subtle, more elegant. God must be even greater than we dreamed'? Instead they say, 'No, no, no! My god is a little god, and I want him to stay that way.'" - Carl Sagan
"To doubt everything or to believe everything are two equally convenient solutions; both dispense with the necessity of reflection." - Henri Poincaré