Silence.

"Silence is a source of great strength" ~ Lao Tzu.

It has to be one of the most admirable qualities of human beings. The internal strength that a few stoic souls share. The willingness to learn and grow through immense challenge and adversity whilst others complain and whine about their most trivial discomforts. They are the embodiment of still waters that run deep. Maybe it's simply black and white. Some choose to whine and complain while others recognize that

"Silence is a source of great strength."