Accident is veiled necessity.

To be content with little is difficult; to be content with much, impossible.

Nobody knows enough, but many know too much.

Between being able to and actually doing something lies an ocean, and on its bottom rests all too often the wreck of willpower.

Not what we experience, but how we perceive what we experience, determines our fate.

One thought cannot awake without awakening others.

Most imitators attempt the inimitable.