take upon oneself

"It is better to take upon oneself punishments and great dangers than to offend God and to provoke His wrath by such offense."

But at the age of twelve it is hard to take upon oneself the settled gloom of an habitual criminal, and I was forced to let out at times and think of other things besides my wicked ways.

One might as truly, it seems, take upon oneself to deny that there was any such colour as red in the world, and tell people that whenever they saw or discerned any tinge of red, it was a delusion; one can only use one's faculty of perception; and if sorrow and suffering are a delusion, how do I know that love and joy are not delusions too?

Remaining an open enterprise, education will allow as many adjustments as each individual is willing to take upon oneself for the length of one's life.