The best way to dispel negative thoughts is to require that they have a purpose.
A dog is much like a married man, obeying his master's voice for the sake of his master's touch.
Retirement is having nothing to do and someone always keeping you from it.
Skepticism is a religion very rich in evangelists but very short on saviors.
Sometimes, to pursue a new idea, the artist must forfeit his deposit on an old idea.
Life starts out as partly destiny and partly free will, but then you have kids, and it's all destiny.