Swiftness-Slowness

It is not strength, but art, obtains the prize, and to be swift is less than to be wise. (Homer)

Too swift arrives as tardy as too slow. (Shakespeare)

Wisely, and slow. They stumble that run fast. (Shakespeare)

Slowness of movement in a quick-thinking person makes you feel some complication of thought or feeling behind anything that is done. (Bowen)

There is a slowness in affairs which ripens them, and a slowness which rots them. (Roux)