ALL are preserved and improved by operations correspondent to their several faculties; as a carpenter, by building; a grammarian, by grammar; but if he accustom himself to write ungrammatically, his art will necessarily be spoiled and destroyed. Thus modest actions preserve the modest man, and immodest ones destroy him; faithful actions, the faithful man, and the contrary destroy him. On the other hand, contrary actions heighten contrary characters. Thus impudence, an impudent one; knavery, a knavish one; slander, a slanderous one; anger, an angry one; and inequitable dealings, a covetous one.

EPICTETUS. DISCOURSES. Book ii. §9. ¶2

Today I am reminded of my introduction to programming in University, the principle of "Garbage In/Garbage Out".  What we put into our minds, bodies and spirit is what we will put out into our lives and the society around us.  We need to be ever mindful of what influences we are encouraging in our lives, choose the best of what is available, be discerning and judge the things that we allow to have precedence in our lives.
Especially in this day of rushing around and modernity, we need to be discerning about the varied influences we allow into the minutiae of our days and focus on the best of things.