Wallace D. Wattles

Studying the people who have got rich, we find that they are an average lot in all respects, having no greater talents and abilities than other men.

like causes always produce like effects,

It is true that you will do best in a business which you like, and which is congenial to you, and if you have certain talents which are well developed, you will do best in a business which calls for the exercise of those talents.