领导力就是做出艰难的决定并坚持下去。
贫困和无知可能逐渐消失的希望,很大程度上源于十九世纪工人阶级的稳步进步。
"War is just a series of moments when you don't die, strung together by fear and luck."
数学的真正力量在于它能够揭示支配宇宙的隐藏模式和结构。
The cement industry must evolve or become obsolete.