When love and hate are both absent, everything becomes clear and undisguised. Make the slightest distinction, however, and heaven and earth are set infinitely apart. If you wish to see the truth, then hold no opinions for or against anything. To set up what you like against what you dislike is the disease of the mind.
Are the great spiritual teachings really advocating that we fight evil because we are on the side of light, the side of peace? Are they telling us to fight against that other 'undesirable' side, the bad and the black. That is a big question. If there is wisdom in the sacred teachings, there should not be any war. As long as a person is involved with warfare, trying to defend or attack, then his action is not sacred; it is mundane, dualistic, a battlefield situation.
Life is the only thing which can never be replaced when lost.
Yes, Kālāmas, it is proper that your have doubt, that you have perplexity, for a doubt has arisen in a matter which is doubtful. Now, look you Kālāmas, do not be led by reports, or traditions, or hearsay. Be not led by the authority of religious texts, not by the delight in speculative opinions, nor by seeming possibilities, not by the idea: 'this is our teacher'. But, O Kālāmas, when you know for yourself that certain things are unwholesome, and wrong, and bad, then give them up... And when you know for yourself that certain things are wholesome and good, then accept them and follow them.