In the matters of your mistake you defend it like a lawyer, in the matters of other's mistake you act like a judge.
Fifty year old wealthy man resents twenty five year old middle class man, without recalling that 25 years back even he was a poor man.
Though money cannot acquire you happiness, it does not mean that both money and happiness cannot exist together.
Between natural ability and education choose natural ability, as it will keep you happy and will fetch you the glory sooner.
You should praise, criticize and flirt with people right to their face, only then it will make a difference.
When you are angry try your best to go to sleep, it keeps you away from speaking, writing and thinking while you are angry.
If an apology is followed by an excuse or a reason, it means they are going to commit same mistake again they just apologized for.