Moral qualities are so constituted as to be destroyed by excess and by deficiency . . .

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.

In the end, it is my belief, words are the only things that can construct a world that makes sense.

Lighting a cigarette with a sense of achievement for company made the journey worth it.

Do not fear, for I am with you - Isaiah 41:10

Life can become difficult when out of sync with your heart-felt desires.

I'm a spy, Cam. I was born to do this- to be this. It's in my blood. And I will do it until the day I die. It's who I am... The thing is I don't think you realise is... it's who you are too.

If you don't raise the bar, how will you ever know your potential?

I don’t write this letter to put bitterness into your heart, but to pluck it out of mine. For my own sake I must forgive you.

I dread the day I leave [Doctor Who], because then I'll have to go back to writing bedrooms and offices and pubs. And maybe a field, if I'm lucky.

The most powerful force in the human psyche is people's need for their words and actions to stay consistent with their IDENTITY - how we define ourselves.