科学的每一次伟大进步都源于新的想象的大胆。
Every great advance in science has issued from a new audacity of imagination.
The true measure of our success in forestry will be what we leave for future generations, not just our quarterly reports.
I’m not perfect, and I don’t pretend to be.
要想知道戒酒的办法，清醒时看看醉酒人的丑态便知道如何做了。