A hopeful life is more probable to be helpful/fruitful/successful. Whereas, a hopeless life is most definite to be helpless/unfruitful/unsuccessful. Therefore, for life be hopeful and never hopeless, even if/when it seems there is not a hope at all. ~Emeasoba George.
A hundred times every day I remind myself that my inner and outer life depends on the labors of other men, living and dead, and that I must exert myself in order to give in the measure as I have received and am still receiving.