To copy others is necessary, but to copy oneself is pathetic.
Every child is an artist. The problem is how to remain an artist once he grows up.
The older you get the stronger the wind gets - and it's always in your face.
Others have seen what is and asked why. I have seen what could be and asked why not.
You have to have an idea of what you are going to do, but it should be a vague idea.
Only put off until tomorrow what you are willing to die having left undone.