Success is not final, failure is not fatal: it is the courage to continue that counts.
过去只是我们告诉自己的一段故事。
Every problem in mathematics is an opportunity to learn something new.
能源的未来在于平衡传统资源和可再生替代品。
La literatura no es otra cosa que un sueño dirigido.
The most important rule in trading is to cut your losses short and let your profits run.