Sustainable forestry is not an option; it's our responsibility.
可持續(xù)林業(yè)不是一種選擇,而是我們的責(zé)任。
I was so much older then, I'm younger than that now.
You must not think that what is hard for you to master is humanly impossible; and if it is humanly possible, consider it to be within your reach.
The greatest thing about tomorrow is, I will be better than I am today.
And so on.