Things do not happen. Things are made to happen.
Problems are not stop signs, they are guidelines.
The most effective way to do it, is to do it.
Always desire to learn something useful.
Begin to be now what you will be hereafter.
Wherever you are - be all there.
By failing to prepare, you are preparing to fail.
Who seeks shall find.
Without hard work, nothing grows but weeds.
Either you run the day or the day runs 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.