...the fully awakened Buddha has taught these four summaries of the teaching for recitation....
What four?
‘The world is unstable and swept away.’ This is the first summary.
‘The world has no shelter and no savior.’ This is the second summary.
‘The world has no owner—you must leave it all behind and pass on.’ This is the third summary.
‘The world is wanting, insatiable, the slave of craving.’ This is the fourth summary.
MN 82 Raṭṭhapāla sutta