As far as we can discern, the sole purpose of human existence is to kindle a light of meaning in the darkness of mere being.

In the depth of winter, I finally learned that within me there lay an invincible summer.

When making your choice in life, do not neglect to live.

I always like walking in the rain, so no one can see me crying.

Life can be pulled by goals just as surely as it can be pushed by drives.

Life should be great rather than long.

We keep moving forward, opening new doors, and doing new things, because we're curious and curiosity keeps leading us down new paths.

Don't cry for a man who's left you - the next one may fall for your smile.

To cherish what remains of the Earth and to foster its renewal is our only legitimate hope of survival.

Imagination and fiction make up more than three quarters of our real life.

Courage is a kind of salvation.

You can find the entire cosmos lurking in its least remarkable objects.

Nature is not human-hearted.

Sometimes - history needs a push.

Yesterday is dead, tomorrow hasn't arrived yet. I have just one day, and I'm going to be happy in it.

Middle age has been defined as what happens when a person's broad mind and narrow waist change places.

Life did not intend to make us perfect. Whoever is perfect belongs in a museum.

I always like to look on the optimistic side of life, but I am realistic enough to know that life is a complex matter.

There is nothing enlightened about shrinking so that other people won't feel insecure around you. We are all meant to shine, as children do.

Whether I shall turn out to be the hero of my own life, or whether that station will be held by anybody else, these pages must show.

Should you find yourself in a chronically leaking boat, energy devoted to changing vessels is likely to be more productive than energy devoted to patching leaks.