Gentleness - large inspiring German informal art on canvas for interior design by independent artist

Gentleness - a word that contains two opposing components. But only at first glance, because sometimes it takes a lot of courage to do things gently. Without asserting power, threatening gestures, etc.
Gentleness is often confused with inferiority. That is why gentle needs so much courage.
An epigram by Erich Kästner fits this very well:
 
A question of courage
Who dares
to oppose the thundering trains?
The little flowers
between the railroad ties!