Discord

"Three Rules of Work: Out of clutter find simplicity; From discord find harmony; In the middle of difficulty lies opportunity."
~Albert Einstein

"One man gets nothing but discord out of a piano; another gets harmony. No one claims the piano is at fault. Life is about the same. The discord is there, and the harmony is there. Study to play it correctly, and it will give forth the beauty; play it falsely, and it will give forth the ugliness. Life is not at fault."
~Thomas Paine

"Medicine to produce health must examine disease; and music, to create harmony must investigate discord."
~Plutarch

"Opposition brings concord. Out of discord comes the fairest harmony."
~Heraclitus of Ephesus

"In seasons of tumult and discord bad men have the most power; mental and moral excellence require peace and quietness."
~Publius Cornelius Tacitus

"And there stalks Discord delighted with her torn mantle."
~Virgil