学不至于乐，不可谓之学。
学习应使人感到快乐，否则不能称之为真正的学习。
"We need to think differently about how we approach cancer treatment."
The world is full of obvious things which nobody by any chance ever observes.
True craftsmanship is about passion, precision, and patience.
Oil and gas will remain part of the energy mix for decades to come, but we must produce them as cleanly as possible.