Maitreya Buddha (Sk.). The same as the Kalki Avatar of Vishnu (the “White Horse” Avatar), and of Sosiosh and other Messiahs... - Helena Blavatsky

Buddha Siddhârta (Sk.) The name given to Gautama, the Prince of Kapilavastu, at his birth... Gautama, the Buddha, would not have been a mortal man, had he not passed through hundreds and thousands of births previous to his last.... (p. 66) During the years of his mission it is blameless and pure as that of a god—or as the latter should be. He is a perfect example of a divine, godly man. He reached Buddhaship—i.e., complete enlightenment—entirely by his own merit and owing to his own individual exertions, no god being supposed to have any personal merit in the exercise of goodness and holiness. Esoteric teachings claim that he renounced Nirvâna and gave up the Dharmakâya vesture to remain a “Buddha of compassion” within the reach of the miseries of this world.
...The religious philosophy he left... has produced for over 2,000 years generations of good and unselfish men. His is the only absolutely bloodless religion among all the existing religions tolerant and liberal, teaching universal compassion and charity, love and self-sacrifice, poverty and contentment with one’s lot, whatever it may he. No persecutions, and enforcement of faith by fire and sword, have ever disgraced it. No thunder-and-lightning-vomiting god has interfered with its chaste commandments; and if the simple, humane and philosophical code of daily life left to us by the greatest Man-Reformer ever known, should ever come to he adopted by mankind at large, then indeed an era of bliss and peace would dawn on Humanity. (p. 68)

I speak "with absolute certainty" only so far as my own personal belief is concerned. Those who have not the same warrant for their belief as I have, would be very credulous and foolish to accept it on blind faith. Nor does the writer believe any more than her correspondent and his friends in any "authority" let alone "divine revelation"!

Children should above all be taught self-reliance, love for all men, altruism, mutual charity, and more than anything else, to think and reason for themselves... Aim at creating free men and women, free intellectually, free morally, unprejudiced in all respects, and above all things, unselfish.