Permanence, perseverance and persistence in spite of all obstacle s, discouragement s, and impossibilities: It is this, that in all things distinguishes the strong soul from the weak.
Thomas CarlyleOur works are the mirror wherein the spirit first sees its natural lineaments. Hence, too, the folly of that impossible precept, Know theyself; till it be translated into this partially possible one, know what thou canst work at.
Thomas Carlyle