高額: large amount of money / 工学: engineering / 光学: optics / 後学: future reference / 好学: love of learning

沿岸: coast, shore / 遠眼: farsightedness

長引く: drag on, persist, be prolonged, last into

逃れる, 遁れる: escape

耕す: till, plough

哲学: philosophy

widely known, well-known, well connected

(literally, their heart is wide) generous, big-hearted

郊外: suburb / 公害: pollution / 校外: off-campus / 口蓋: palate / 口外: disclosure / 梗概: outline, summary / 鉱害: environmental damage due to mining / 構外: off grounds, outside the premises / 港外: outside a port

口外: disclose, reveal a secret / 慷慨: be righteously indignant