Battle against bias is a daily practice

See this article. It's a good point that even when we become aware of our biases that doesn't make them go away. We need constant and continual vigilance to catch them operating below awareness to have any semblance of control over them.

"But the thing about biases is that they seem inhabit a place that is preeminent to our moral codes. They give thought, and even reason at first, a weight in one direction or another. It seems (for me at least) that it is only with practice and the persistent reapplication of reason that these biases can be unseated, if only for a short time. [...] The strange thing is that I still discover personal biases to this day and am certain that I will continue to do so in the years to come."