As the heat of a fire reduces wood to ashes, the fire of knowledge burns to ashes all karma. Nothing in this world purifies like spiritual wisdom. It is the perfection achieved in time through the path of yoga, the path which leads to the Self within.
Bhagavad Gita 4.37-38
God gives wisdom to whom He will, and he to whom wisdom is given has truly received abundant good. But none remember except men of understanding. Quran 2.269
The end and aim of wisdom is repentance and good deeds. The Talmud
They are all straight to him who understands and right to those who find knowledge. Take my instruction instead of silver, and knowledge rather than choice gold; for wisdom is better than jewels, and all that you may desire cannot compare with her. Unkown
Knowing others is intelligence; knowing yourself is true wisdom. Mastering others is strength, mastering yourself is true power. Lao Tzu