If you have any doubt at all about being able to carry a load in one trip, do yourself a huge favor and make two trips.
To teach mathematics is to inspire the next generation of thinkers and problem solvers.
一个命题的证明是一种性质使得我们相信该命题的过程。
Your work is going to fill a large part of your life, and the only way to be truly satisfied is to do what you believe is great work.