Contemplation is a means of elevating the soul; through contemplation, humanity can gain a deeper understanding of the mysteries of the cosmos.

生命是一段旅程，而爱是让这段旅程变得有价值的东西。

The teacher who is indeed wise does not bid you to enter the house of his wisdom but rather leads you to the threshold of your own mind.

The essence of mathematics lies in its freedom.

图书馆是世界的宝箱。