If happiness is activity in accordance with excellence, it is reasonable that it should be in accordance with the highest excellence.

It is during our darkest moments that we must focus to see the light.

Happiness depends upon ourselves.

Educating the mind without educating the heart is no education at all.

Adventure is worthwhile.

Patience is bitter, but its fruit is sweet.

Love is composed of a single soul inhabiting two bodies.

Education is an ornament in prosperity and a refuge in adversity.

Be a free thinker and don't accept everything you hear as truth. Be critical and evaluate what you believe in.

Knowing yourself is the beginning of all wisdom.

Criticism is something we can avoid easily by saying nothing, doing nothing, and being nothing.

Ethically and politically it is important to face up to the need for a universal perspective in our divided, multi-cultural, unequal and unjust world.

Imagination is the light by which we can penetrate new worlds of thought and experience.

Nature is cold, wet, hard and unforgiving.

I think that we do have a great country, but there's a lot of things that we're not so great at. Unfortunately, education is one of them.

Every one of us should be ashamed to be free while his brother is a slave.

Truth is, I don't mind getting a black eye or broken arm for a girl as long as she's there to kiss it after.

If lifespan jumps by 30 or 40 years, that has enormous implications.

I can be a bit of an overachiever and always dance that line of balance between giving myself to work versus giving time to myself and loved ones.

You have to be responsible for the energy you're putting out into the world.

Drink, sir, is a great provoker of three things . . . nose-painting, sleep, and urine. Lechery, sir, it provokes, and unprovokes; it provokes the desire, but it takes away the performance.