Go for it now. The future is promised to no one.
The dog that trots about finds a bone.
Always desire to learn something useful.
Things do not happen. Things are made to happen.
If you're going through hell, keep going.
You never know what motivates you.
Expect problems and eat them for breakfast.
After a storm comes a calm.
Leap, and the net will appear.
Begin to be now what you will be hereafter.
Beauty is the first test: there is no permanent place in the world for ugly mathematics.