"Sincerity with respect to yourself! No matter what your objective… no matter who you are… if you are going to do something or not do something, that is a promise to yourself. And the one who keeps the promise, or breaks the promise, is you. No one else can be burdened with holding you to a promise that’s made to yourself. ~~XXXHoLic Vol. 1 pg. 145"
January 1, 1970
https://en.wikiquote.org/wiki/%C3%97%C3%97%C3%97HOLiC