1) Siddhartha, also known as Gautama was the founder of Buddhism.
2) According to Buddha life of mankind is filled with unhappiness and this is because humans have desires. Hence, this desire should be removed by following moderation in everything
3) He asked people to be kind, and respect the lives of others, including animals.
4) He believed that the results of our actions (karma) affect us both in this life and next.
5) Buddha's teachings were in the language of ordinary people, Prakrit, which made everybody to understand his message.