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.
When I think of all the books I have read, and of the wise words I have heard spoken, and of the anxiety I have given to parents and grandparents, and of the hopes that I have had, all life weighed in the scales of my own life seems to me a preparation for something that never happens.
It were as wise to cast a violet into a crucible that you might discover the formal principle of its color and odor, as seek to transfuse from one language into another the creations of a poet. The plant must spring again from its seed, or it will bear no flower -- and this is the burthen of the curse of Babel.
So in this case, Kalamas, don't go by reports, by legends, by traditions, by scripture, by logical conjecture, by inference, by analogies, by agreement through pondering views, by probability, or by the thought, 'This contemplative is our teacher.' When you know for yourselves that, 'These qualities are unskillful; these qualities are blameworthy; these qualities are criticized by the wise; these qualities, when adopted & carried out, lead to harm & to suffering' - then you should abandon them.
To be free is not necessarily to be wise. Wisdom comes with counsel, with the frank and free conference of untrammeled men united in the common interest.
[Heraclitus] did not require humans or their sort of knowledge, since everything into which one may inquire he despises [as being] in contrast [to his own] inward-turning wisdom. [To him] all learning from others is a sign of nonwisdom, because the wise man focuses his vision on his own intelligence.
By three methods we may learn wisdom: First, by reflection, which is noblest; Second, by imitation, which is easiest; and third by experience, which is the bitterest.