seek after/for

Please understand it is natural for humans to seek after information - just not as compulsively as the analytical thinker seeks it.

Amazingly, after I left, my husband was able to find his own courage and seek treatment for his addiction.

After all, who in his right mind would seek a lousy old patent offering a mere 20 years of protection when copyright can provide monopoly rights for up to 70 years after the author's death?