We should be careful to get out of an experience only the wisdom that is in it-and stop there;
lest we be like the cat that sits down on a hot stove-lid.
Cat will never sit down on a hot stove-lid again-and that is well; but also she will never sit down on a cold one anymore.
- 마크트웨인（馬克•吐溫/ Mark Twain）
In every aspect of life, the most learned individual will always rule the world.
However, knowledge that is attained through experience gives rise to stereotypes, and these in turn lead to backwards thinking.
Like learning something new, we need to learn how to filter and "unlearn" obsolete practices.
Although we must still learn from our experiences, we must try not to cling onto outdated practices.