Frustration, although quite painful at times, is a very positive and essential part of success. Bo Bennett
Reading computer manuals without the hardware is a frustrating as reading sex manuals without the software. Arthur C. Clarke
Being frustrated is disagreeable, but the real disasters in life begin when you get what you want. Irving Kristol
Frustration is the wet nurse of violence. David Abrahansen
The torment of human frustration, whatever its immediate cause, is the knowledge that the self is in prison, its vital force and ‘mangled mind’ leaking away in lonely, wasteful self-conflict. Elizabeth Drew