The secret of a happy marriage is finding the right person. You know they're right if you love to be with them all the time.
Success is almost totally dependent upon drive and persistence. The extra energy required to make another effort or try another approach is the secret of winning.
One secret of leadership is that the mind of a leader never turns off. Leaders even when they are sightseers or spectators, are active; not passive observers.
The secret of genius is to carry the spirit of the child into old age, which means never losing your enthusiasm.
Secret — quotes and aphorisms
Put your heart, mind, and soul into even your smallest acts. This is the secret of success.
I think I've discovered the secret of life - you just hang around until you get used to it.