経験というものは、大きな犠牲を払って得た場合は、決して忘れてしまうことはないものだ。

experience

called; named; as many as; as much as; all X; every X

person

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

big; large; great

victim; sacrifice; scapegoat

indicates direct object of action; indicates subject of causative expression; indicates an area traversed; indicates time (period) over which action takes place; indicates point of departure or separation of action; indicates object of desire, like, hate, etc.

to pay (e.g. money, bill); to brush off; to wipe away; to clear away; to dust off; to cut off (e.g. branches); to drive away (e.g. one's competitors); to sell off (something unneeded); to dispose of; to pay (e.g. attention); to show (e.g. respect, concern); to make (e.g. effort, sacrifice); to expend; to exert; to move out (of one's own place); to vacate; to sweep (e.g. one's legs); to knock aside; to make a sweeping stroke (in Japanese calligraphy); to reset (an abacus)

case; situation

never; by no means; not in the least; in no way

to forget; to leave carelessly; to be forgetful of; to forget about; to forget (an article)

thing; matter; incident; occurrence; event; something serious; trouble; crisis; circumstances; situation; state of affairs; work; business; affair; after an inflectable word, creates a noun phrase indicating something the speaker does not feel close to; nominalizing suffix; pretending to ...; playing make-believe ...; alias; aka; nickname; alternative name; also known as

not; emphatic suffix

be; is; indicates past or completed action; indicates light imperative