The sound of a kiss is not so loud as that of a cannon, but its echo lasts a great deal longer.
Oliver Wendell Holmes, Sr.

Poetry is an echo, asking a shadow to dance.
Carl Sandburg

It is not so much the example of others we imitate as the reflection of ourselves in their eyes and the echo of ourselves in their words.
Eric Hoffer

I would hurl words into this darkness and wait for an echo, and if an echo sounded, no matter how faintly, I would send other words to tell, to march, to fight, to create a sense of hunger for life that gnaws in us all.
Richard Wright

Music is the harmonious voice of creation; an echo of the invisible world.
Giuseppe Mazzini

Sublimity is the echo of great mind.
Longinus