...with pure motives, and only for the sake of God ...arise...serve

Is there any greater blessing conceivable for a man, than that he
should become the cause of the education, the development, the
prosperity and honor of his fellow-creatures? No, by the Lord God!
The highest righteousness of all is for blessed souls to take hold of
the hands of the helpless and deliver them out of their ignorance
and abasement and poverty, and with pure motives, and only for
the sake of God, to arise and energetically devote themselves to the
service of the masses, forgetting their own worldly advantage and
working only to serve the general good.

(‘Abdu’l-Bahá, in Paul Lample, Creating a New Mind, page 14)