To determine on even the most insignificant matter only after fully reasoned deliberation. All unthinking behaviour, all meaningless actions, should be kept far away from the soul. One should always have well-weighed reasons for everything. And one should definitely abstain from doing anything for which there is no significant reason.
Once one is convinced of the rightness of a decision, one must hold fast to it, with inner steadfastness.
This may be called:
having been formed independently of sympathies and antipathies.