Whatever actions you engage in, do not do anything non-dharmic that fails to become the accumulation of merit and wisdom. Do not desire anything other than omniscient Buddhahood and benefiting sentient beings.
Do not be attached to anything. Attachment itself is the root of bondage. Do not criticize other teachings and do not disparage people. All the teachings are ultimately indivisible, like the taste of salt.
Do not criticize any of the higher or lower vehicles. They are identical in being the path to be journeyed, just like the steps on a staircase. You cannot know another person unless you can perceive with super-knowledge. So do not criticize others.
In general, all sentient beings are by their very nature spontaneously perfect Buddhas. They possess the essence of enlightenment. Do not examine other people’s faults or delusions.
Do not examine the limitations of others. Examine how you can change your own. Do not examine the shortcomings of others but examine your own shortcomings.
The greatest of evils is to hold religious prejudice and to criticize other people without knowing their mind. So give up prejudice as if it were poison. - Padmasambhava