Problems are not stop signs, they are guidelines.
If you think you can do it, you can.
Expect problems and eat them for breakfast.
Who seeks shall find.
Go for it now. The future is promised to no one.
Always desire to learn something useful.
If you're going through hell, keep going.
If you've got a talent, protect it.
Be gentle to all and stern with yourself.
To know oneself, one should assert oneself.
The initial motivation of the experiment which led to this discovery was a subconscious feeling for the inexhaustible wealth of nature, a wealth that goes far beyond the imagination of man.