- What are we doing on Earth? Author: Paulo Coelho Copy Quote More from Paulo Coelho “Certainly. But take this into consideration: of every ten problems we have, nin…” “Everything has changed; it's just that we can't see it.” “Life is too short, or too long, for me to allot myself the luxury of living it …” “On your journey to your dream, be ready to face oasis and deserts. In both case…”