Sean M. HACKETT, Ph.D.

“The happiness of your life depends upon the quality of your thoughts.”

– Marcus Aurelius

 “Knowing others is intelligence; knowing yourself is true wisdom. Mastering others is strength; mastering yourself is true power.”

– Lao Tzu

“We don’t see things as they are, we see them as we are.”

– Anaïs Nin

“The test of a first-rate intelligence is the ability to hold two opposing ideas in mind at the same time and still retain the ability to function.”

– F. Scott Fitzgerald

“Tell me and I forget, teach me and I may remember, involve me and I learn.”

– Benjamin Franklin

Portfolio of Activities


At HACKETT LABS my focus is on teaching, research, advising/coaching, and service activities in higher education.


At MDI.TOKYO my focus is on delivering world-class Executive Education and Learning & Development experiences to Companies and Groups.

“Only by externalization, by entering into social relationships, can we develop the interiority of our own person.”

-Jurgen Habermas

“There are people across the country who deny evidence, invent their own facts and live in their own fantasyland.”

– David Brooks

“Above all, don’t lie to yourself. The person who lies to himself or herself and listens to their own lie comes to a point that they cannot distinguish the Truth within, or around their self, and so lose all self-respect and all respect for others. And having no respect they cease to love.”

– Fyodor Dostoevsky

“The whole purpose of reasoning – of logic – is to arrive at the Truth. Not to pursue the Truth would be absurd. Truth is what gives meaning to all our endeavors.”

– D. Q. McInerny

“This is the true joy in life: being used for a purpose recognized by yourself as a mighty one; being a force of nature instead of a feverish selfish little clod of ailments and grievances complaining that the world will not devote itself to making you happy.

I am of the opinion that my life belongs to the whole community, and as long as I live, it is my privilege to do for it whatever I can. I want to be thoroughly used up when I die, for the harder I work, the more I live. Life is no ‘brief candle’ to me. It is a sort of splendid torch which I have got hold of for the moment, and I want to make it burn as brightly as possible before handing it on to future generations.”

– George Bernard Shaw