Four Kanji Idiom

Four kanji idioms are proverbs encapsulated in 4 kanji often associated with an historical event or classical story. Select 4 kanji idioms from the list below to design a T-shirt or other customizable product.

JapaneseReadingMeaning 
一心不乱isshin furanheart and soul, being completely absorbed, concentration
七転八起nanakorobi yaokistumbling seven times but recovering eight
切磋琢磨sessa takumawork hard
文武両道bunbu ryodothe way of the pen and the sword
臥薪嘗胆gashin shoutanwork hard to achieve your goal