The quaternion was born, as a curious offspring of a quaternion of parents, say of geometry, algebra, metaphysics, and poetry.
四元数的诞生，如同几何、代数、形而上学和诗歌这四位父母的奇特后代。
大陆就像漂浮在密度更大的岩石海洋上的冰山。
成功不在于你担任的职位，而在于你带来的改变。
Self-education is, I firmly believe, the only kind of education there is.
每个数学问题都有一个解决方案；只是需要时间和努力去找到它。