The progress of science consists in the expansion of the field of experience.
如果你不頑強，你就會過早放棄試驗。如果你不靈活，你就會以頭撞墻，而不會找到解決問題的不同辦法。
The United States should not try to spread democracy around the world.
I'm not a person who backs down.
The truth is out there, but it often hides in the details.
Aquaculture isn’t an alternative to wild fisheries—it’s a partner in preserving them.