If he does not accept disciples individually it is because he serves men otherwise. Those who try to get such acceptance and find themselves rebuffed may consider him selfish, cold, remote. But they will be greatly mistaken. He can serve mankind--not each person separately but in groups or masses--and he may do this by lecturing, by writing, or simply by directing his meditation in the appropriate way. For a writer's books spread not only his ideas but also something of himself.
-- Notebooks Category 25: World-Mind in Individual Mind > Chapter 4: The Sage's Service > # 120