Don't let a little dispute injure a great relationship.

Happiness is not something ready made. It comes from your own actions.

The purpose of our lives is to be happy-Dalai Lama

Remember that not getting what you want is sometimes a wonderful stroke of luck.

If you think you are too small to make a difference, try sleeping with a mosquito.

There are only two days in the year that nothing can be done. One is called Yesterday and the other is called Tomorrow. Today is the right day to Love, Believe, Do and mostly Live.

Don't ever mistake my silence for ignorance, my calmness for acceptance or my kindness for weakness. Compassion and tolerance are not a sign of weakness, but a sign of strength.

Give the ones you love wings to fly, roots to come back and reasons to stay.

Our prime purpose in this life is to help others. And if you can't help them, at least don't hurt them.

Do not let the behavior of others destroy your inner peace.

Just one small positive thought in the morning can change your whole day.

Man is unhappy because he doesn't know he's happy. It's only that.

It's not time that is passing by after all, it's you and I

I always try to keep that feeling of being on the edge. I'm afraid of knowing too well and seeming mechanical.

I have a home in Arizona. I go a couple months a year, but basically Chicago is my home.

Usually I'll go to San Diego to hang out with my parents if I want to unwind

When you get older, everybody sort of changes and moves away. I think that stands the test of time, when you have a friendship from youth that's still in your life today.

You can't go through a divorce and then get back together.

You can change your emotion immediately .. by thinking of something joyful, or singing a song, or remembering a happy experience.

One day I discovered that one could get the barrier to internal rotation in ethane approximately right using this method. This was the beginning of my work on organic molecules.

I learned that you have to evaluate the effects of public policy as opposed to intentions.