Wait and Hope_Wisdom

I was moved very much when I read the paragraph below:

"There is neither happiness nor misery in the world; there is only the comparison of one state with another, nothing more. He who has felt the deepest grief is best able to experience supreme happiness. We must have felt what is is to die, Morrel, that we may appreciate the enjoyments of living. Live, then, and be happy, beloved children of my heart, and never forget that until the day when God shaa deign to reveal the future to man, all human wisdom is summed up in these two words,—‘Wait and hope.'

all human wisdom is summoned up in these two words,—‘Wait and hope.' "