You never know what motivates you.
Begin to be now what you will be hereafter.
Leap, and the net will appear.
Go for it now. The future is promised to no one.
The most effective way to do it, is to do it.
The wise does at once what the fool does at last.
Who seeks shall find.
The dog that trots about finds a bone.
If you think you can do it, you can.
Always desire to learn something useful.
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.