Innovation without purpose is just noise.
我对一遍又一遍地扮演同一个角色不感兴趣。
大自然将人类置于两位至高无上的主宰之下,痛苦和快乐。
对中国国民党同志共勉,1920年1月1日
当你相信它时,你就会看到它。
Every mathematical problem has a solution; you just need to find the right perspective.
The labor which it would require to make a single one of these guns by hand would exhaust the patience and perseverance of any ordinary workman.