The question of truth and falsehood is always present, but it is not always answerable.
真假的问题始终存在，但并不总是可以回答的。
数学是一种思维方式，而不仅仅是一堆事实。
The best way to be happy is to be grateful.
The energy transition won't happen overnight, but we must make progress every day.
The farmer is the only man in our economy who has to buy everything at retail, sell everything at wholesale, and pay the freight both ways.
真相很少是纯粹的，也从不简单。