俄国诺贝尔奖得主，曾经做了一个令人印象非常深刻的实验。

他的实验对象是一条狗，他将狗关在笼子里，并用木棍绑着一条接有高压电的电线碰触狗儿的前腿。狗受到电击立马向后弹退，同时尖声狂吠。这时，巴洛特夫便把一小块熟牛肉丢到笼子里。

巴洛特夫每隔二、三个小时，就重复一遍相同的实验。慢慢地，狗对电击的反应不再像一开始那么强烈，他似乎明白到在享受美食前必须要经受一下电击的考验。

这样的实验持续了十几天，狗见到巴洛特夫拿着“木棍”走近时，已经不在像开始般浑身发抖地蜷缩在笼子的角落里哀叫，反而主动凑上前来伸出脚。

有过了几天，狗在碰到电线后并没有立即跳开，于是便让高压电给活活电死了。

【大道理】：

一个人如果被欲望所驱使，便会一步步迈向罪恶的深渊。他的心灵亦将在麻木中死亡。
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