Friendship is the source of the greatest pleasures, and without friends even the most agreeable pursuits become tedious.

Friendship is the source of the greatest pleasures, and without friends even the most agreeable pursuits become tedious.

友谊是最大快乐的源泉，没有朋友，即使是最愉快的追求也会变得乏味。

-- Thomas Aquinas 托马斯·阿奎那