Begin to be now what you will be hereafter.
The secret of getting ahead is getting started.
Do not weep do not wax indignant. Understand.
If you think you can do it, you can.
If you can dream it, you can do it.
Be thine own palace, or the world's thy jail.
The wise does at once what the fool does at last.
Expect problems and eat them for breakfast.
You never know what motivates you.
It's always too early to quit.
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.