The past always looks better than it was. It's only pleasant because it isn't here.

The end of all knowledge should be service to others.

The science of today is the technology of tomorrow.

Stay positive and happy. Work hard and don't give up hope. Be open to criticism and keep learning. Surround yourself with happy, warm, and genuine people.

The best advice I ever got was that knowledge is power and to keep reading.

We should regret our mistakes and learn from them, but never carry them forward into the future with us.

You can find peace amidst the storms that threaten you.

Knowledge rests not upon truth alone, but upon error also.

I like to listen. I have learned a great deal from listening carefully. Most people never listen.

Knowledge is like money: to be of value, it must circulate, and in circulating, it can increase in quantity and, hopefully, in value.