How can one ever know anything if they are too busy thinking?

Be a lamp unto yourself.

When you know for yourselves, 'These things are wholesome; these things are blameless; these things are praised by the wise; these things, if undertaken and practiced, lead to welfare and happiness,' then you should engage in them.

The greatest impurity is ignorance. Free yourself from it. Be pure.

Through zeal, knowledge is gotten, through lack of zeal, knowledge is lost; let a man who knows this double path of gain and loss thus place himself that knowledge may grow.

Awake. Be the witness of your thoughts. You are what observes, not what you observe.

I am a finger pointing to the moon. Don't look at me; look at the moon.