To the mediocre, mediocrity is a form of happiness.
Complacency is almost always the product of success or perceived success
Contentment is a kind of moral laziness; if there wasn't anything but contentment in his world, man wouldn't be any more of a success than an angleworm is
Good is the enemy of great.
What I fear is complacency. When things always become better, people tend to want more for less work.
Happy he whoe'er, content with the common lot, with safe breeze hugs the shore, and, fearing to trust his skiff to the wider sea, with unambitious oar keeps close to the land.
Any form of complacency is the kiss of death for any professional.
He who is content with what has been done is an obstacle in the path of progress.
