Your voice is your power. Never let anyone silence you.

The balance between economy and ecology is the core of modern forestry.

解释：第一次击鼓能振作士兵们的勇气，第二次击鼓可以使士兵们的勇气低落，第三次击鼓士兵们的勇气就消失了。

The world is a mirror of the mind.

I don't need a reason to be happy with who I am.

The stock market is a device for transferring money from the impatient to the patient.