If you read Mahayana Buddhist text, they specifically laid out
the 10 evils negative karma 十惡業.
They are:
1. Killing 殺生
2. Stealing 偷盜
3. Sexual Misconduct 邪淫
4. Lying 妄語
5. Speaking behind other's back and causing others to have
conflicts (including spreading rumours) 兩舌
6. Flattery and Fawning others with dishonest beautiful words
綺語
7. Harsh speech (scolding, bad-mouth, vugarity) 惡口
8. Greed 貪
9. Hatred 嗔
10. Ignorance 痴
The opposite of the above are known as "10 Good Karma" 十善業,
which most buddhist practise.
1. No killing.
2. No stealing
3. No sexual misconduct
4. No lying
5. No speaking behind one's back and causing others to have
conflicts
6. No flattery or fawning others with dishonest beautiful
words
7. No harsh speech
8. Generosity
9. Loving-kindness/Compassion
10. Wisdom
Other precepts taken to prevent evils include:
No intoxications such as alcohols, smoking, drugs, gambling,
prostitution or any form of addictions.
yeah, i have to definitely read that Mahayanist text in order to
know what's good and bad. *ahem ahem* :p Thanks.