I have learnt from the politics of my great country, Nigeria that there is nothing wrong with the heads of states, but there is something wrong with the state of the heads.

Happy is the soul that has a friend. Happier is the soul that trusts in the truth of the heart of a friend. Happiest is the soul that knows the solemnity of friendship and honours its laws.

To be happy, you have to risk being unhappy.

Like love, like talent, like any other virtue, like anything else in this life, happiness needs to be nurtured - this is the truth of the whole matter.

The face of a truly happy man seldom lacks smiles.

Always be happy, you never know how happy you can make another by just being happy.

Happiness springs up from within. Do not seek it without.

It is better to hope less than to be hopeless.

Where would we have been without the discoveries of our predecessors, and where are we going without your discoveries?

Knowing trees, I came to realize, understand and appreciate the act of patience.

If your failure is not a lesson, it's indeed a failure.

Life is difficult.

Possession and loving are concepts that damn each other.

We can overcome division only by refusing to be divided.

If it's sanity you're after There's no recipe like Laughter. Laugh it off.

Honour is manly decency. The shame of being found wanting in it means everything to us. Is this, then, the indefinable, the sacred thing?

Emperor Sid Caesar is gone to eternity himself now. He takes with him the gratitude of every one of us who first learned the relief of laughter from this genuinely great performer.

I threw [Picasso's] drawing on the floor and in doing so, threw away about £50m.

I have no interest in romanticizing poor black people, having been one of them myself in our beloved hometown of Detroit.

I was immediately swept up in Ariane's story. Equal parts thrill-ride and love story, The Rules is intense and emotional. This book stays with you long after you finish.

I think that is the difference between the very good and the best.