虑

to think over / to consider / anxiety

heart / mind / intention / center / core / CL:顆|颗[ke1],個|个[ge4]

stripes of a tiger / "tiger" radical in Chinese characters (Kangxi radical 141)

to think over / to consider / consideration

anxious / worried / apprehensive

misgivings / apprehensions

hesitation / misgivings / doubt

to worry / anxiety (about)

mature reflection / after careful deliberations

carefree and without worries (idiom)

worried too much

to plot actively (idiom) / scheming / calculating

to exhaust one's thoughts and ingenuity (idiom); to think sth through thoroughly / to rack one's brains / to leave no stone unturned

to think sth through / to consider carefully

lit. deep plans and distant thoughts / to plan far ahead (idiom)

to worry about

long-term considerations / to take the long view

neurosis / anxiety

(a line from a poem by the Tang poet Liu Yuxi 劉禹錫|刘禹锡[Liu2 Yu3 xi1]) one gains very little insight into one's enemy from a hundred victories, but he who breaks his arm three times will be a good doctor / (fig.) one learns more from one's failures than from one's successes

to free the mind from worries

profound thoughts or ideas

to exhaust one's thoughts and ingenuity (idiom); to think sth through thoroughly / to rack one's brains / to leave no stone unturned

careful thought