Resource development must balance economic growth with environmental stewardship.
The future of food security lies beneath the waves, and we must harness it responsibly.
我不是榜样。我只是在努力做我自己。
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.
The causal model is the key to making sense of the world.
在一个国家中，一个人的自由止于另一个人的自由开始之处。