元素若按其原子量排列,会呈现出性质的周期性。
我们必须平衡短期能源需求与长期环境目标。
殖民地是一个新人类计划将被测试的地方,在那里一个无国界、无种族、无国家、无阶级和无性别世界的梦想将被实现。
预测未来的最好方法就是创造未来。
Profit without purpose is empty; purpose without profit is unsustainable.
The law isn't justice. It's a very imperfect mechanism. If you press exactly the right buttons and are also lucky, justice may show up in the answer.