We have to fight; otherwise what is the meaning of preaching? If you think that everything will be accepted very easily, then where is the necessity of preaching and propaganda?

You must know that they are all rascals. That I say: rascals, unbelievers. You have to convert them to be sane man. That is preaching. That is preaching. Why do you expect that every man will immediately go and he’ll agree with you? Why do you expect like that? That is foolishness.

You must know that everybody will disagree with you, and it is your preaching work that you will make him agree with you. That is your preaching work. We do not expect that everybody will agree. Everybody will disagree. Just like our books. Say four, five years ago, nobody knew these books, so there was no market. But we have created our market. That is preaching. We have created our market. Nobody was dying for want of these books. So that is preaching. Preaching does not mean everyone is ready to accept your theories. You must expect that everybody will not accept it. Now it is your power to convince him, “Yes, you must accept.” That is preaching.

Srila Prabhupada — December 11, 1973, Los Angeles