Srila Bhaktisiddhanta Sarasvati Thakura has warned us that if one becomes attracted to nontheistic ethical philosophies, such as those of the Buddhists and Jains, which glorify such mundane principles as ahimsa, or nonviolence, one's mundane faith in godless ethics is spiritually suicidal. To restrict the senses by artificial austerities and to undertake huge social arrangements to facilitate mass sense gratification are both godless attempts to regulate human society in an artificial way that hides the eternal relationship of every living being with the Supreme Personality of Godhead, the natural leader of society. When so-called moral philosophers spoil the opportunity of human life, the opportunity to revive our eternal relationship with Krsna, in the name of ethics such foolish persons commit the greatest violence against human society.

From SB 11.3.26, commentary