Diligent

ˈdɪlɪdʒənt

adjective

having or showing care and conscientiousness in one's work or duties

The word 'diligent' comes from the Latin word 'diligere', which means 'to value' or 'to esteem'. Being diligent involves valuing the task at hand and putting effort into completing it thoroughly and carefully.

The wind was getting up, and the moisture in it was enough to numb all his exposed skin (after three weeks of diligent needlework, that amounted to not much more than his forehead and the tip of his nose).

Stephen King

Dark Tower 7 - The Dark Tower

It gratified all the vicious vanity that was in him; and so, instead of winning him, it only “set him up” the more and made him the more diligent to avoid betraying that he knew she was about.

Mark Twain

The Adventures of Tom Sawyer

His fire had gone out some time ago; Satin was not as diligent in feeding it as Dolorous Edd had been.

George R. R. Martin

A Dance with Dragons: A Song of Ice and Fire: Book Five

XXIV It was the time when wholesale dealers close Their shutters with a moody sense of wealth, But retail dealers, diligent, let loose The gas (objected to on score of health), Convey’d in little solder’d pipes by stealth, And make it flare in many a brilliant form, That all the powers of darkness it repell’th, Which to the oil-trade doth great scaith and harm, And supersedeth quite the use of the glow-worm.

John Keats

Poetry

But since this mystery is of such a nature that nobody can know or use it unless he be prepared by long and diligent self-purification, not everyone can hope to attain it quickly.

Leo Tolstoy

War and Peace

264 It cannot be effaced from a man’s soul what his ancestors have preferably and most constantly done: whether they were perhaps diligent economizers attached to a desk and a cashbox, modest and citizen-like in their desires, modest also in their virtues; or whether they were accustomed to commanding from morning till night, fond of rude pleasures and probably of still ruder duties and responsibilities; or whether, finally, at one time or another, they have sacrificed old privileges of birth and possession, in order to live wholly for their faith—for their “God,”—as men of an inexorable and sensitive conscience, which blushes at every compromise.

Friedrich Nietzsche

Beyond Good and Evil

For, thought Ahab, while even the highest earthly felicities ever have a certain unsignifying pettiness lurking in them, but, at bottom, all heartwoes, a mystic significance, and, in some men, an archangelic grandeur; so do their diligent tracings-out not belie the obvious deduction.

Herman Melville

Moby Dick

Are you not ashamed of being always so punctual and so diligent with your lessons?

Carlo Collodi

The Adventures of Pinocchio

But three weeks had already passed, and the most diligent search had been unsuccessful; the attempted robbery and the murder of the robber by his comrade were almost forgotten in anticipation of the approaching marriage of Mademoiselle Danglars to the Count Andrea Cavalcanti.

Alexandre Dumas

The Count of Monte Cristo

The really diligent student in one of the crowded hives of Cambridge College is as solitary as a dervish in the desert.

Henry David Thoreau

Walden

She was a good woman, a kind woman, a diligent woman, but no one, save perhaps Tinka her ten-year-old, was at all interested in her or entirely aware that she was alive.

Sinclair Lewis

Babbitt

Thus pigs have occasionally been born with a sort of proboscis, and if any wild species of the same genus had naturally possessed a proboscis, it might have been argued that this had appeared as a monstrosity; but I have as yet failed to find, after diligent search, cases of monstrosities resembling normal structures in nearly allied forms, and these alone bear on the question.

Charles Darwin

The Origin of Species

His fire had gone out some time ago; Satin was not as diligent in feeding it as Dolorous Edd had been.

Martin, George, R. R.

A Dance With Dragons

All this I say, exalted and esteemed lady, because it seems to me that for us to remain any longer in this castle now is useless, and may be injurious to us in a way that we shall find out some day; for who knows but that your enemy the giant may have learned by means of secret and diligent spies that I am going to destroy him, and if the opportunity be given him he may seize it to fortify himself in some impregnable castle or stronghold, against which all my efforts and the might of my indefatigable arm may avail but little?

Miguel de Cervantes Saavedra

Don Quixote

“There have been, since the world began,” says a very diligent and respectable author, the Marquis de Mirabeau, “three great inventions which have principally given stability to political societies, independent of many other inventions which have enriched and adorned them.

Adam Smith

The Wealth of Nations