Problems are not stop signs, they are guidelines.
If you can dream it, you can do it.
After a storm comes a calm.
Things do not happen. Things are made to happen.
If you think you can do it, you can.
You never know what motivates you.
By failing to prepare, you are preparing to fail.
Wherever you are - be all there.
Either you run the day or the day runs you.
Be kind whenever possible. It is always possible.
Imagination is as vital to any advance in science as learning and precision are essential for starting points.