心灵是进化和学习的产物。
Liberty is obedience to self-imposed law.
在任何科学事业中取得成功都需要非凡的能力、勤奋和精力。
The future of forestry is circular, not linear.
Never underestimate the power of perseverance.
The function of entrepreneurs is to reform or revolutionize the pattern of production by exploiting an invention or, more generally, an untried technological possibility for producing a new commodity or producing an old one in a new way.