出处:1876年3月10日,贝尔第一次通过他发明的电话在寝室向在实验室里的助手沃森说的一句话。
The coal industry must evolve to meet modern environmental standards, or it will become obsolete.
"Science is the art of asking the right questions and finding the answers through evidence and reason."
The only thing that matters is what you believe in yourself.