我从不考虑过去。我总是期待下一个挑战。
I never think about the past. I always look forward to the next challenge.
In science, the credit goes to the man who convinces the world, not to the man to whom the idea first occurs.
解析：这句话揭示了道的本质：道是可以阐述说明的，但并非寻常的道理；名是可以命名的，但并非通常的名称。