Who seeks shall find.
Problems are not stop signs, they are guidelines.
The dog that trots about finds a bone.
Either you run the day or the day runs you.
By failing to prepare, you are preparing to fail.
I can, therefore I am.
Wherever you are - be all there.
What you do today can improve all your tomorrows.
If you think you can do it, you can.
You never know what motivates you.
All the mathematical sciences are founded on relations between physical laws and laws of numbers, so that the aim of exact science is to reduce the problems of nature to the determination of quantities by operations with numbers.