Thoroughly to believe in one's own self, so one's self were thorough, were to do great things. -Tennyson.
If there be a faith that can remove mountains, it is faith in one's own power. -Marie Ebner-Eschenbach.
Let no one discourage self-reliance; it is, of all the rest, the greatest quality of true manliness. -Kossuth.
It needs a divine ma