In our reasonings concerning matter of fact， there are all imaginable degrees of assurance， from the highest certainty to the lowest species of moral evidence.

领导力意味着为了更美好的明天而在今天做出艰难的选择。

I always believe that I can win, but I know it's not easy.

成功不是终点，失败也并非致命，重要的是继续前进的勇气。

创新是可持续农业的关键。

未经审视的生活不值得过。