Society can and does execute its own mandates， and if it issues wrong mandates instead of right， or any mandates at all in things with which it ought not to meddle， it practices a social tyranny more formidable than many kinds of political oppression， since， though not usually upheld by such extreme penalties， it leaves fewer means of escape， penetrating much more deeply into the details of life， and enslaving the soul itself.

You have to be fearless in the pursuit of what sets your soul on fire.

The development of learning algorithms that can handle high-dimensional data is a major challenge in the field.

黑夜是我的画布，音乐是我的颜料。

In the end, we will remember not the words of our enemies, but the silence of our friends.