我们对国家的愿景必须大胆而雄心勃勃。
我们必须听从科学——忽视它只会导致不可逆转的损害。
The only limit to our realization of tomorrow will be our doubts of today.
Leadership is about inspiring people to do things they never thought they could do.
世界是一个舞台,但演员选得很糟糕。