B. C. Forbes said this quote

Many a man has walked up to the opportunity for which he has long been preparing himself looked it full in the face and then begun to get cold feet... when it comes to betting on yourself and your power to do the thing you know you must do or write yourself down a failure you're a chicken-livered coward if you hesitate.

~ B. C. Forbes

The man who has done his level best and who is conscious that he has done his best is a success even though the world may write him down a failure.

~ B. C. Forbes

Pity the human being who is not able to connect faith within himself with the infinite.... He who has faith has ... an inward reservoir of courage hope confidence calmness and assuring trust that all will come out well-even though to the world it may appear to come out most badly.

~ B. C. Forbes

Call the roll in your memory of conspicuously successful [business] giants and if you know anything about their careers you will be struck by the fact that almost every one of them encountered inordinate difficulties sufficient to crush all but the gamest of spirits. Edison went hungry many times before he became famous.

~ B. C. Forbes