The essence of mathematics lies in its freedom.

To me programming is more than an important practical art. It is also a gigantic undertaking in the foundations of knowledge.

The best fertilizer for any farm is the footsteps of the farmer.

大脑的活动构成了心智

To have a confident attitude, please learn to learn you do not have to learn the knowledge.

我们必须不断挑战我们的假设，并愿意改变我们的想法。