Leaders of the church should be men not easily discouraged, not without hope, and not given to forebodings of all sorts of evils to come. Above all things, the leaders of the people should never disseminate a spirit of gloom in the hearts of the people.  -  Joseph F. Smith

The Priesthood is an everlasting principle, and exists with God from eternity, and will, to eternity, without beginning of days or end of years.  -  Joseph Smith

Priesthood Stewardship - The stewardship of priesthood holders by David O. McKay

We have the same Priesthood that Jesus had, and we have got to do as He did, to make sacrifices of our own desires and feelings as He did, perhaps not to die as martyrs as He did, but we have got to make sacrifices in order to carry out the purposes of God, or we shall not be worthy of this Holy Priesthood and be saviors of the world. - President Lorenzo Snow