Are you bored with life? Then throw yourself into ...

Men of age object too much, consult too long, adventure too little, repent too soon, and seldom drive business home to the full period, but content themselves with a mediocrity of success.

The essence of all art is to have pleasure in giving pleasure.

Happiness doesn't depend on any external conditions, it is governed by our mental attitude.

It were a real increase of human happiness, could all young men from the age of nineteen be covered under barrels, or rendered otherwise invisible and there left to follow their lawful studies and callings, till they emerged, sadder and wiser, at the age of twenty-five.

Oh, if I had been loved at the age of seventeen, what an idiot I would be today. Happiness is like smallpox: if you catch it too soon, it can completely ruin your constitution.

You get to a certain age where you prepare yourself for happiness. Sometimes you never remember to actually get happy.

I learned from a very young age that if I pursued the things that truly excited me, that they would reward in more important ways, like happiness.

Anyone who stops learning is old, whether at twenty or eighty. Anyone who keeps learning stays young. The greatest thing in life is to keep your mind young.

There is a fountain of youth: it is your mind, your talents, the creativity you bring to your life and the lives of people you love. When you learn to tap this source, you will truly have defeated age.

Life would be infinitely happier if we could only be born at the age of eighty and gradually approach eighteen.

Probably the happiest period in life most frequently is in middle age, when the eager passions of youth are cooled, and the infirmities of age not yet begun as we see that the shadows, which are at morning and evening so large, almost entirely disappear at midday.

Youth is the gift of nature, but age is a work of art.

It is utterly false and cruelly arbitrary to put all the play and learning into childhood, all the work into middle age, and all the regrets into old age.

Old age is not a matter for sorrow. It is matter for thanks if we have left our work done behind us.

Have regular hours for work and play make each day both useful and pleasant, and prove that you understand the worth of time by employing it well. Then youth will be delightful, old age will bring few regrets, and life will become a beautiful success.