Know or listen to those who know.
Go for it now. The future is promised to no one.
Be thine own palace, or the world's thy jail.
I can, therefore I am.
Be gentle to all and stern with yourself.
Without hard work, nothing grows but weeds.
Quality is not an act, it is a habit.
Problems are not stop signs, they are guidelines.
Leap, and the net will appear.
If you're going through hell, keep going.
In 1948 I entered the Massachusetts Institute of Technology, undecided between studies of chemistry and physics, but my first year convinced me that physics was more interesting to me.