The only person who cannot be helped is that person who blames others.

自信源于准备，彻底了解你的领域。

The only limit to our realization of tomorrow will be our doubts of today.

Representation of the world, like the world itself, is the work of men; they describe it from their own point of view, which they confuse with the absolute truth.

The test of our progress is not whether we add more to the abundance of those who have much; it is whether we provide enough for those who have too little.