Everyone thinks of changing the world, but no one thinks of changing himself.
Leadership is about making tough decisions and standing by them.
Every miner's contribution is vital to keeping the lights on.
"Die Kunst des Schreibens besteht darin, die Welt so zu beschreiben, wie sie ist, und gleichzeitig so, wie sie sein könnte."
Every great advance in science has issued from a new audacity of imagination.