Small, deliberate actions practiced consistently can lead to big changes in happiness levels.
Man is the artisan of his own happiness.
The revolution is made through human beings, but individuals must forge their revolutionary spirit day by day.
Laws that have not their basis in nature are useless.
心灵是一个过程的动态平衡。
The most powerful weapon on earth is the human soul on fire.
暴力中没有长存的希望，只能从绝望中得到暂时的解脱。
The truth is, we are all waiting to be told who we are.
你可以拥有一切，只是你不可能马上拥有一切。
数学不是沿着一条清理得很好的高速公路小心行进，而是一次进入陌生荒野的旅程，探险者常常会迷路。
I'm not the best singer in the world, but I'm passionate about what I do.
——《在广州商团及警察联欢会的演说》（1924年1月14日）