Any material form, or thought, or feeling, past or present, should be regarded as, 'This is not mine, this is not what I am, this is not my self.'
Nothing ever exists entirely alone; everything is in relation to everythiong else.
If there is only empty space, with no suns nor planets in it, then space loses its substantiality.
A truly wise man does not play leapfrog with a unicorn.
Do not speak - unless it improves on silence.
Establish your mind as necessary for knowledge and remembrance. Establish a mind free of grasping to anything.