刚愎自用的英文：
[Literal Meaning]
obstinate/self-opinionated
to be very obstinate

[解释]
十分固执自信，不考虑别人的意见。

[Explanation]
to be opinionated

[例子]
正是由于教练的刚愎自用，才让我们输掉了比赛的后面三局。

[Example]
It was for the coach's obstinate personality that we lost the last three rounds of the match.

Wise men change their minds; fools never do
智者通权达变,愚者刚愎自用

"A lively child,who had been spoilt and indulged,and therefore was sometimes wayward(Charlotte Bront.
“原本是一个活泼可爱的小孩，可因为被宠惯了，所以有时也会刚愎自用，任性倔强”(夏洛蒂·勃朗特)。

He is always self-willed and disagreeable.
他一贯刚愎自用，性情乖戾。

Foolishly or irrationally stubborn; headstrong.
顽固的，刚愎自用的愚蠢地或无理地顽固的;任性的

I am not so violently bent upon my own opinion as to reject any offer proposed by wise men.
我并不刚愎自用，以至于对贤人高见一概排斥。

She's hopelessly headstrong;she always gets up against people in authority.
她刚愎自用到了不可挽救的地步，老是与主管人员发生冲突。

Determined to have one's own way;stubbornly and often recklessly willful.
刚愎自用的，固执已见的决定自行其事的;顽固且通常不考虑后果地任性的

James II, the bigoted successor of Charles the Voluptuous, had annulled the charters of all the colonies
酒色之徒查理的那个刚愎自用的王位继承者詹姆士二世废止了所有的殖民地宪章。

I've known for a long time that you were proud and headstrong, but I thought time would change you
很久以来我就知道你骄傲自负，刚愎自用，不过我以为时间会使你改变。