We hold ourselves back in ways both big and small, by lacking self-confidence, by not raising our hands, and by pulling back when we should be leaning in.

未来不是礼物。它是一种成就。

"The further a society drifts from the truth, the more it will hate those that speak it."

True innovation comes from questioning what we think we know.

The first duty of the sovereign， that of protecting the society from the violence and invasion of other independent societies， can be performed only by means of a military force.