在孤独中，我们找到自己。
In solitude, we find ourselves.
译文：假如让青春年华虚度，到年老时只能悔恨不已。赏析：人生短暂，年华易逝，我们要珍惜每天的日子，不要蹉跎岁月。
可持续性不仅仅是一个流行词；它是我们对后代的责任。
The future is not a result of choices among alternative paths offered by the present, but a place that is created—created first in the mind and will, created next in activity.