《長部》第一經，佛陀對遊方者善生優陀夷及其弟子梵與所說，先分三級闡明戒行，再將有關自我與世界的六十二種思辨見解一一歸類破析。

The first discourse of the Dīghanikāya, taught to the wanderer Suppiya and his disciple Brahmadatta, setting out the moral precepts in three graded sections before classifying sixty-two speculative views about the self and the world.