Strength of mind rests in sobriety for this keeps your reason unclouded by passion.
Maturity - among other things the unclouded happiness of the child at play who takes it for granted that he is at one with his play-mates.
In order to properly understand the big picture everyone should fear becoming mentally clouded and obsessed with one small section of truth.
My business is to teach my aspirations to confirm themselves to fact not to try and make facts harmonize with my aspirations.