Wisdom according to the Lotus Sutra.

Buddhism Day by Day

Wisdom for Modern Life by Daisaku Ikeda
Tuesday, January 8, 2013:

 

Wisdom, in the Lotus Sutra, does not simply mean being smart; it is far more profound. Essentially, it is to have an excellent "heart." Wisdom signifies humanity and force of character borne of strength, breadth and profundity of spirit. Nichiren says, "The wise may be called human." He also explains that one who perseveres in following a correct way of life, unswayed by praise and censure, is truly wise.