“Self-trust is the first secret of success.”
Emerson treats successful action as beginning with confidence that one has a real task and capacity of one's own, before public recognition or visible achievement arrives.
Source note: Society and Solitude, essay “Success”; Project Gutenberg #69258. Emerson immediately explains self-trust as believing that one is here “for cause” or for a task fitted to one's constitution, while warning that it does not mean rushing into a showy feat for spectators.