to depart without taking leave; to take French leave

To not shrink from toil and hardship; to work tirelessly without complaining about the effort required effort.

to take trouble; to not shrink from hardship; to work hard without complaint

will not hesitate to; will not refuse to; to be willing to undertake regardless of the risk or difficulty

To accept hardship and make nothing of it; to take trouble over something without complaint.

Willing to face any danger or sacrifice one's life without hesitation; ready to die ten thousand deaths rather than decline a mission or duty.

to not hesitate to face hardship or danger for the sake of justice; motivated by duty to never avoid difficult tasks