"Accept everything about yourself - I mean everything, You are you and that is the beginning and the end - no apologies, no regrets."

"It is, after all, the responsibility of the expert to operate the familiar and that of the leader to transcend it."

"The task of the leader is to get his people from where they are to where they have not been."

"Most foreign policies that history has marked highly, in whatever country, have been originated by leaders who were opposed by experts."

"To master the mind is to understand that kindness can heal wounds that time cannot."

"Growing old is no more than a bad habit which a busy person has no time to form."

"An hour spent in deep contemplation is worth a year of unguided wandering — an essential principle for the reflective life."

"For the first half of geological time our ancestors were bacteria. Most creatures still are bacteria, and each one of our trillions of cells is a colony of bacteria."