身为爱尔兰人就是要明白,这个世界终将让你心碎。
物体的加速度与所受的合外力成正比,与物体的质量成反比。加速度的方向与合力的方向相同。
伟大的传记应该像一幅肖像,既能捕捉光明也能捕捉阴影。
"The past is a puzzle, and the historian is the person who tries to put the pieces together."
The greatest challenge to any thinker is stating the problem in a way that will allow a solution.