Never having been able to ...

Never having been able to succeed in the world, he took his revenge by speaking ill of it.
Never having been able to succeed in the world, he took his revenge by speaking ill of it.

Quotes from the same author

God gave us the gift of life; it is up to us to give ourselves the gift of living well.
To enjoy life, we must touch much of it lightly.
Think for yourselves and let others enjoy the privilege to do so too.
Friendship is the marriage of the soul, and this marriage is liable to divorce.
No snowflake in an avalanche ever feels responsible.