I can, therefore I am.
The wise does at once what the fool does at last.
Problems are not stop signs, they are guidelines.
Things do not happen. Things are made to happen.
Be thine own palace, or the world's thy jail.
To know oneself, one should assert oneself.
Always desire to learn something useful.
You never know what motivates you.
What you do today can improve all your tomorrows.
If you can dream it, you can do it.
Science is wonderfully equipped to answer the question 'How?' but it gets terribly confused when you ask the question 'Why?'