一位头发花白、仪表非凡的男子走向一座建筑物的大门。有个年轻女子和他同时到达,他替她拉开门。她说:“别因为我是女人而替我开门。”那男子沉默片刻之后说:“我替你开门,并非因为你是女人,而是因为我是男人。” A gray-haired man with extraordinary instruments walks toward the gate of a building. A young woman arrived with him at the same time. He opened the door for her. She said: “Do not open the door for me because I am a woman.” The man said after a moment of silence: “I opened the door for you not because you were a woman but because I was a man.”