化学的进步以新元素的发现和分析方法的改进为标志。

The role of education in economic development cannot be overstated; it is the foundation upon which innovation and productivity are built.

However difficult life may seem, there is always something you can do, and succeed at. It matter that you don’t just give up.

恐惧是心灵的监狱。

我的生命本来就是预备向你的仇敌抛掷的。