What is the Five-vehicle (Pa?ca-yāna) Buddha Dhamma? What are the Worldly Conditions or things (Loka-dhamma) and the Super-mundane Conditions or things (Lokuttara-dhamma)?
什么是五乘佛法？什么是世间法和出世间法？

The Five Vehicles (Pa?ca-yāna) consist of Human Vehicle, Heavenly Vehicle, Sāvaka Vehicle, Pacceka-buddha Vehicle and Bodhisatta Vehicle. The last three are referred to as the Super-mundane conditions or Lokuttara-dhamma, its doctrines are comparatively profound and difficult to learn; the former two, Human and Heavenly Vehicles, are the Worldly conditions or Loka-dhamma. The Worldly Conditions or theories are easy to study and should be followed by the common people. So it was named Popular Buddhism by the predecessors. The main contents of the Popular Buddhism are the Five Precepts (Pa?ca-sīlā) and Ten Good Acts or Ten Virtuous Deeds (Dasa-Kusalāni). The former involves abstaining from killing, stealing, sexual misconduct, lying and drinking intoxicants. Buddhism holds that these immoral conducts must be strictly prohibited. Hence the term Five Precepts. The Ten Good Acts, based on the Five Precepts, regulate the Three Kammas (body, speech and mind) in a total of ten ways. Pertaining to the body kamma, there are three items: avoidance of killing, stealing, sexual misconduct; pertaining to the verbal kamma are four items: avoidance of lying, slandering, rude speech and foolish babble; and to the mental kamma are three items: avoidance of covetousness, hatred and ignorance. These are Ten Good Acts, and the opposite is known as the Ten Bad Acts or Ten Unwholesome Deeds.
人乘、天乘、声闻乘、缘觉乘、菩萨乘这叫五乘。其中后三种叫出世间法，教理深奥，比较难学；前二人天乘教是世间法。世间法是世人易学而能够做到的也是应该做到的，前人名之为人间佛教。人间佛教主要内容就是：五戒、十善。五戒是：不杀生、不偷盗、不邪淫、不妄语、不饮酒。佛教认为，这类不道德的行为应该严格禁止，所以称为五戒。十善是在五戒的基础上建立的，约身、口、意三业分为十种。身业有三种：不杀、不盗、不邪淫；口业有四种：不妄语欺骗，不是非两舌，不恶口伤人，不说无益绮语；意业有三种：不贪、不嗔、不愚痴。这就叫十善，反之就叫十恶。