Khalil Gibran: "Your pain is the..."

"Your pain is the breaking of the shell which encloses your understanding."

—Khalil Gibran, "The Prophet"

Upton Sinclair: "It is difficult to..."

"It is difficult to get a man to understand something when his salary depends upon his not understanding it.

—Upton Sinclair

Stephen Karam: "Some things you can't..."

"Some things you can't understand until you understand them. Until they're happening to you."

—Stephen Karam, character of Charles in Sons of the Prophet