勤于学习的人才会愿意施教。
And gladly would learn, and gladly teach.
数学的本质在于它的自由。
We keep moving forward - opening up new doors and doing new things - because we're curious.
I'm always looking for new challenges, new ways to push myself creatively.
感官训练可以培养敏锐的观察者,适应现在的文明时代,更能实际地应用于日常生活中。