Without eyes there is not light; without knowledge there is no wisdom. A stubborn mind will fare badly at the end, and whoever loves danger will perish in it. A stubborn mind will be burdened by troubles, and the sinner adds sin to sins. When calamity befalls the proud, there is no healing, for an evil plant has taken root in him. The mind of the intelligent appreciates proverbs, and an attentive ear is the desire of the wise.