However difficult life may seem, there is always something you can do and succeed at.

However, one cannot really argue with a mathematical theorem.

People won't have time for you if you are always angry or complaining.

If you believe in science, like I do, you believe that there are certain laws that are always obeyed.

We only have to look at ourselves to see how intelligent life might develop into something we wouldn't want to meet.

Work gives you meaning and purpose and life is empty without it.