没有完美的知识可以称为我们与生俱来的;唯有从经验中获得的知识才是真正的知识。
Certification is the grammar of responsible forestry.
We are all just passing through, leaving only shadows behind.
Success is not an entitlement. It has to be earned.
教学的艺术不在于传授本领,而在于激励、唤醒和鼓舞。