物理理论的美不仅在于其数学的优雅,还在于其解释和预测现象的能力。
The future of grain production lies in sustainable practices that respect both the land and the people who work it.
Now some advantages particular to this age are not to be denied. Boredom seems to have been vanquished. There is always something to do, but hasn’t this translated into a perpetual distraction in our lives.
Theorems are the milestones of mathematics.