Time is free, but it's priceless. You can't own it, but you can use it. You can't keep it, but you can spend it. Once you've lost it you can never get it back.
Minds are like parachutes-not much good unless they are open.
Friends are made by many acts...and lost by only one.
When you're thirsty, it's too late to think about digging a well.
Don't wait for a funeral to pay a compliment. You may not make it in time.
A student of life considers the world a classroom.