Weakness on both sides is, as ...

Weakness on both sides is, as we know, the motto of all quarrels.
Weakness on both sides is, as we know, the motto of all quarrels.

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.