The key is to keep improving, keep fighting, keep believing.

The language of mathematics is universal, transcending cultural and linguistic barriers.

The past is always with us, and it shapes who we are and what we become.

个人投资者应该始终如一地作为投资者而不是投机者行事。

革命是无情的，不仅对那些落后的人，而且对那些跑在前面的人。

我唱歌不是为了得奖，而是因为热爱。