即使在艰难时刻，我也努力保持积极。
I always try to stay positive, even in tough moments.
任何圆的面积等于一个直角三角形，其中一条直角边等于半径，另一条等于圆的周长。
To every action there is always opposed an equal reaction； or， the mutual actions of two bodies upon each other are always equal， and directed to contrary parts.
成功的关键在于专注于创造价值，而不仅仅是赚钱。