There is no easy way to the glory of a great opera.

The Vietnamese people deeply love independence, freedom, and peace. But in the face of a threat to their country's independence, the Vietnamese people would rather sacrifice everything than lose their country and be enslaved.

Take away love and our earth is a tomb.

In science, we must be open to the possibility that our most cherished theories could be wrong.

It is good to have an end to journey toward; but it is the journey that matters, in the end.

我不会让世界改变我的梦想。