|C.N. Douglas, comp. Forty Thousand Quotations: Prose and Poetical. 1917.|
| Self-confidence is the first requisite to great undertakings.|
| Self-confidence is either a petty pride in our own narrowness, or a realization of our duty and privilege as one of Gods children.|
| Self-confidence is not hope; it is the self-judgment of your own internal forces in their relation to the world without, which results from the failure of many hopes and the non-realization of many fears.|
| The great characteristic of men of active genius is a sublime self-confidence, springing not from self-conceit, but from an intense identification of the man with his object, which lifts him altogether above the fear of danger and death, which gives to his enterprise a character of insanity to the common eye, and which communicates an almost superhuman audacity to his will.|
E. P. Whipple.