Srila Bhaktisiddhanta Saraswati Prabhupada was known as 'simha' (lion) 'guru' due to his fearless and ferocious preaching on behalf of Lord Chaitanya. Today we engaged in hearing and remembering His Divine Grace (along with feasting).
"Sometimes Christian priests come to us inquiring, 'Why are our followers neglecting our scriptures and accepting yours?' But when we ask them, 'Your Bible says, "Do not kill." Why then are you killing so many animals daily?' they cannot answer."