In their earthly lives, all the Great Teachers applied their thoughts expressly to action, expressly to construction. Not one of Them tried to withdraw into anchoretic life. All of Them labored with human hands and human feet toward new achievements. Therefore, one must insist upon action, for air castles have no place. And at the present time this is more necessary than ever before, as humanity struggles against the gigantic attacks of the dark forces. (LOHR I (opens in new tab), 18 October 1934)