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

It is the absence of facts that frightens people: the gap you open, into which they pour their fears, fantasies, desires.

The world is full of magic things, patiently waiting for our senses to grow sharper.

Psychology must be a science of observation, not speculation.

奥运会上最重要的不是胜利，而是参与；人生中最重要的不是征服，而是奋力拼搏。

To be human is to be flawed, but it is also to be capable of great change.

成功不是关于金钱或权力，而是关于产生影响。

Drone safety is not an option, but a baseline.

解释：说同样的话，由于说话的人不同，人们心中的看法也会随之改变。