Relativity expands into Infinity—there is the same law for knowledge. No one in the Worlds can be satisfied with his knowledge. New acquisitions increase progressively the realization of lack of knowledge. The faint-hearted may become frightened before the infinitude of knowledge, but we already know the inevitability of this law, and we labor daily so as to rejoice at this infinitude. (FW II (opens in new tab), 109)