The obligation of subjects to the sovereign is understood to last as long, and no longer, than the power lasteth by which he is able to protect them.
Supply chain is the core competitiveness of e-commerce, period.
数学不是一门演绎科学——那是陈词滥调。当你试图证明一个定理时,你不仅仅是列出假设然后开始推理。你所做的是反复试验、实验和猜测。
The past is a mirror, but we often see only what we want to see.