Know or listen to those who know.
Do not weep do not wax indignant. Understand.
It's always too early to quit.
The dog that trots about finds a bone.
To know oneself, one should assert oneself.
If you can dream it, you can do it.
Leap, and the net will appear.
If you're going through hell, keep going.
You never know what motivates you.
Always desire to learn something useful.
For the greater beauty of the instrument, the balls representing the planets are to be of considerable bigness but so contrived, that they may be taken off at pleasure, and others, much smaller, and fitter for some purposes, put in their places.