(adjective) Having, or capable of exerting power, potency or influence.
"Habits are powerful but we have the power to create them."
"Allowing people to have space for self-growth is a powerful form of love."
"You are powerful and you are capable of anything you imagine."
"The simplest acts of kindness are by far more powerful then a thousand heads bowing in prayer."
"If we desire to secure peace, one of the most powerful instruments of our rising prosperity."
"Distrust all in whom the impulse to punish is powerful."
"Who is wise? He that learns from everyone. Who is powerful? He that governs his passions. Who is rich? He that is content. Who is that? Nobody."
"He who controls others may be powerful, but he who has mastered himself is mightier still."
"Nonviolence is a weapon of the strong."
"You have to feed your mind daily with the good, clean, pure, powerful and positive."