A.

“Generally, when a leader struggles, the root cause behind the problem is that the leader has leaned too far in one direction and steered off course. Awareness”
― Jocko Willink, Extreme Ownership: How U.S. Navy SEALs Lead and Win

“If you are unsure of a course of action, do not attempt it. Your doubts and hesitations will infect your execution. Timidity is dangerous: Better to enter with boldness. Any mistakes you commit through audacity are easily corrected with more audacity. Everyone admires the bold; no one honors the timid.”
― Robert Greene, The 48 Laws of Power

“Understand: people will constantly attack you in life. One of their main weapons will be to instill in you doubts about yourself – your worth, your abilities, your potential. They will often disguise this as their objective opinion, but invariably it has a political purpose – they want to keep you down.”
― Robert Greene, The 50th Law: Overcoming Adversity Through Fearlessness

“Extreme Ownership. Leaders must own everything in their world. There is no one else to blame.”
― Jocko Willink, Extreme Ownership: How U.S. Navy SEALs Lead and Win