If you want to build a great enterprise, you have to have the courage to dream great dreams.
The P versus NP problem is one of the most important problems in computer science.
The dialogue between interior and exterior is fundamental.
The greatest happiness which can happen to any country is the taking of the supreme power out of the hands of the governing few and putting it into the hands of the governed many.
没有祖国的人,就像没有歌声的夜莺。
——在神户高等女校对神户商业会议所等五团体演讲,1924年11月28日