—Because I am very cold.
A:How do you put on your coat?
B:Why do you put on your coat?
C:Why do you take off your coat?
人的心灵和身体在不停地进行对话。如果人的心情愉快,常常把事情往好的方面想,体内就会分泌出具有活跃脑细胞、增强体质功能的荷尔蒙。这段话蕴含的哲学道理是( )