As we age, we have the choice to smooth or sharpen our edges.
Now it's great to sharpen those edges if you define to sharpen as to make keener or brighter, but when you think of older people whose edges become biting, bitter, or sharp like scissors, that's a different story.
To smooth one's edges can mean to soften, become gentler, and to work with greater love and care.
As we age, we make decisions. Will be become tough and obstinate, or will become more collaborative, forgiving, and kind.
I think it's best to smooth our edges with sharp focus and keen intent. We want to do well by ourselves and others as well as make the most of this life we've been given. It's not always easy, but it's what's best for us.