[Skull]

Theosophy is an integrated system of fundamental verities taught by initiates and adepts across millennia. It is the Philosophia Perennis, the philosophy of human perfectibility, the science of spirituality and the religion of responsibility. It is the primeval fount of myriad religious systems as well as the hidden essence and esoteric wisdom of each. Man, an immortal being in his true nature, has been able to preserve this sacred heritage through the sacrificial efforts of enlightened and compassionate individuals or Mahatmas who constitute an ancient Brotherhood. They quietly assist in the ethical evolution and spiritual development of humanity. Theosophia is Divine Wisdom, transmitted and verified over aeons by the sages who belong to this secret Brotherhood.

From Introduction to The Descent of the Gods.