You should desire for others what you desire for yourself, and hate for others what you hate for yourself. Do not oppress, just as you do not like to be oppressed. Do good to others just as you would like good to be done to you. Dislike in yourself what you dislike in others. Accept that treatment from others which you would like others to accept from you. Do not say to others what you do not like to be said to you.
Ali ibn Abi TalibPerfecting one's intellect causes one to speak less, and those words spoken will be adorned with wisdom.
Ali ibn Abi Talib