世界上最好和最美的事物是看不见甚至摸不着的 - 它们必须用心去感受。

The past, like the future, is indefinite and exists only as a spectrum of possibilities.

我永远无法安全；我总是试图逆流而上。每当我完成一件事，我就会设定一个更高的目标。这就是我走到今天的方式。

Every body continues in its state of rest, or of uniform motion in a right line, unless it is compelled to change that state by forces impressed upon it.

我们必须在能源安全的需求和减少排放的紧迫性之间取得平衡。

You have to believe in yourself when no one else does.

The duty of a true patriot is to protect his country from its government.