疾病并未使她的人生观变得黯淡；她依然异常乐观。

Her illness has not dimmed her ___outlook on life; she remains remarkably positive.

他的旅行开阔了他的视野，赋予他更具全球性的视角。

His travels broadened his ___outlook, giving him a more global perspective.

哲学家们常常挑战他们那个时代的主流观点，提出激进的新思维方式。

Philosophers often challenge the prevailing ___outlook of their era, proposing radical new ways of thinking.