"Beware of the young doctor and the old barber."

"Our critics are our friends; they show us our faults."

"God heals, and the doctor takes the fees."

"But in this world nothing can be said to be certain, except death and taxes."

"By failing to prepare, you are preparing to fail."

"Necessity never made a good bargain."

"For many are called, but few are chosen."

"Opportunity may knock only once, but temptation leans on the doorbell."

"Its okay to get jacked up and head out onto the highway, but I've been there and I can tell you that the fast lane is littered with countless smoldering wrecks."

"Concern should drive us into action and not into depression."

"Marriage: a book of which the first chapter is written in poetry and the remaining chapters in prose."

"I began to have an idea of my life, not as the slow shaping of achievement to fit my preconceived purposes, but as the gradual discovery and growth of a purpose which I did not know."