not very intelligent
не очень умный (ne ochen' umnyj)
"He’s kind but not the sharpest tool in the shed."
"Он добрый, но не самый умный." (On dobryj, no **ne samyj umnyj**.)
to refuse to change your position or opinion
available for sale
justice should be impartial and not influenced by wealth or...
to fail completely or embarrass oneself
to achieve a position of advantage or superiority
Continue striving; don’t give up.