Only Do What Must Be Done
Wisdom isn’t something to gain. If you manage to ignore things that do not worth your attention, you would automatically get wise.
A wise man does everything he must do and ignore everything he can do nothing about.
Be aware, ignorance may be bliss but stupidity is never a bliss. Stupid people care too much about things they can do nothing about.
Put Theory Into Practice
Even a large base of knowledge is useless if none of it is put into practice.
Do not be a knowledge collector. Collecting stones or other tangible objects would be a much more valuable use of time.
Always put theory into practice.