Character cannot be developed in ease and quiet. Only through experience of trial and suffering can the soul be strengthened, ambition inspired, and success achieved.
— Helen Keller

My past has not defined me, destroyed me, deterred me, or defeated me; it has only strengthened me.
Steve Maraboli strengthened quote

Most people when they come to you for advice, come to have their own opinions strengthened, not corrected.
— Josh Billings

Courage is very important. Like a muscle, it is strengthened by use.
— Ruth Gordon

Perseverance, self-reliance, energetic effort, are doubly strengthened when your rise to battle again.
— Unknown