数学的乐趣在于旅程，而不仅仅是目的地。

The deepest theorems often arise from the simplest observations.

When we think we have been understood, we feel we can control the world around us.

People work better when they know what the goal is and why.It is important that people look forward to coming to work in the morning and enjoy working.

If we had paid no more attention to our plants than we have to our children, we would now be living in a jungle of weeds.