Heraclitus is one of my favourite philosophers. His short pithy statements provoke thought, which is perhaps the essential quality of meaningful philosophy.

A couple for the collection:

#122 After death comes nothing hoped for nor imagined.

#111 What are these people's wits who let themselves be led by speechmakers in crowds, without considering how many fools and thieves there they are among, and how few choose the good? The best choose progress towards one thing, a name forever honoured by the gods, while others eat their way towards sleep like nameless oxen.

Still thought provoking two and a half thousand years later.