A purpose is the eternal condition of success. Nothing will take its place

Talent will not; nothing is more common than unsuccessful men of talent. Genius will not; unrewarded genius is a proverb; the “mute, inglorious Milton” is not a poetic creation. The chance of events, the push of circumstances, will not. The natural unfolding of faculties will not. Education will not; the country is full of unsuccessful educated men; indeed, it is a problem of society what to do with the young men it is turning out of its colleges and professional schools. There is no road to success but through a clear, strong purpose.”
– Theodore Munger