Mathematicians grow very old; it is a healthy profession. The reason you live long is that you have pleasant thoughts. Math and physics are very pleasant things to do. — Dirk Jan Struik Copy Share Image
Mathematics is a vast adventure; its history reflects some of the noblest thoughts of countless generations. — Dirk Jan Struik Copy Share Image
Mathematicians grow very old; it is a healthy profession. The reason you live long is that you have pleasant thoughts. Math and physics are… — Dirk Jan Struik Copy Share Image
