The dead are not powerless. Dead, did I say? There is no death, only a change of worlds.

The future belongs to those who plant trees today.

The role of the economist is part scientist, part engineer.

I don't see limits. I see possibilities.

"A book is a conversation across time."

Today is cruel, tomorrow is crueler, and the day after tomorrow is beautiful, but most people will die tomorrow night, so don't give up today.

纪律是目标与成就之间的桥梁。