योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-207, verse-13

प्रत्यक्षमात्रनिष्ठोऽसौ मूढास्थ इति वक्ति यत् ।
तेन निर्युक्तिनोक्तेन शिलासदृशवृत्तिना ॥ १३ ॥

pratyakṣamātraniṣṭho'sau mūḍhāstha iti vakti yat ,
tena niryuktinoktena śilāsadṛśavṛttinā 13

13. pratyakṣamātraniṣṭhaḥ asau mūḍhāsthāḥ iti vakti
yat | tena niryuktinā uktena śilāsadṛśavṛttinā

13. asau pratyakṣamātraniṣṭhaḥ yat mūḍhāsthāḥ iti vakti,
tena niryuktinā śilāsadṛśavṛttinā uktena (bhavati).

13. Regarding him who is solely fixated on direct perception (pratyakṣa) and declares, 'this is for fools': by this statement, which is made without proper justification and by one whose conduct is as rigid as a stone.

Words meanings summery:

• प्रत्यक्षमात्रनिष्ठः (pratyakṣamātraniṣṭhaḥ) - one who is solely devoted to or based on direct perception

• असौ (asau) - he, that one

• मूढास्थाः (mūḍhāsthāḥ) - fools, foolish ones

• इति (iti) - thus, so, in this way (introduces or closes direct speech or thought)

• वक्ति (vakti) - he/she/it speaks, says, declares

• यत् (yat) - that (conjunction), which, what

• तेन (tena) - by that, by him, by it

• निर्युक्तिना (niryuktinā) - without justification, without proper reasoning

• उक्तेन (uktena) - by what is said, by the statement, by the utterance

• शिलासदृशवृत्तिना (śilāsadṛśavṛttinā) - by one whose conduct/disposition is like a stone, by one with a rigid behavior

Words meanings and morphology

प्रत्यक्षमात्रनिष्ठः (pratyakṣamātraniṣṭhaḥ) - one who is solely devoted to or based on direct perception

(adjective)

Nominative, masculine, singular of pratyakṣamātraniṣṭha

pratyakṣamātraniṣṭha - one whose sole reliance or devotion is direct perception

Compound type : tatpurusha (pratyakṣa+mātra+niṣṭha)

• pratyakṣa – direct perception, perceptible, visible
  noun (neuter)
  Prefix: prati
  Root: akṣ
• mātra – only, merely, sole, measure
  indeclinable (neuter)
• niṣṭha – standing in, abiding in, devoted to, fixed in
  adjective (masculine)
  Prefix: ni
  Root: sthā (class 1)

असौ (asau) - he, that one

(pronoun)

Nominative, masculine, singular of adas

adas - that, he, she, it (often refers to something remote or not immediately present)

मूढास्थाः (mūḍhāsthāḥ) - fools, foolish ones

(noun)

Nominative, masculine, plural of mūḍhāstha

mūḍhāstha - a fool, foolish

Note: Used here in a quote: 'this is for fools'.

इति (iti) - thus, so, in this way (introduces or closes direct speech or thought)

(indeclinable)

वक्ति (vakti) - he/she/it speaks, says, declares

(verb)

3rd person , singular, active, present (lat) of vac

root vac, 2nd conjugation, parasmaipada

Root: vac (class 2)

यत् (yat) - that (conjunction), which, what

(indeclinable)

तेन (tena) - by that, by him, by it

(pronoun)

Instrumental, masculine, singular of tad

tad - that, he, she, it

Note: Refers to the statement made by the person described.

निर्युक्तिना (niryuktinā) - without justification, without proper reasoning

(adjective)

Instrumental, masculine, singular of niryukti

niryukti - lack of justification, absence of reason

Compound type : bahuvrihi (nir+yukti)

• nir – without, out, away from
  indeclinable
• yukti – reason, justification, logic, argument
  noun (feminine)
  From root yuj (to join, to connect, to apply)
  Root: yuj

Note: Modifies 'uktena'.

उक्तेन (uktena) - by what is said, by the statement, by the utterance

(adjective)

Instrumental, masculine, singular of ukta

ukta - said, spoken, uttered, declared

Past Passive Participle

Formed from root vac (to speak)

Root: vac (class 2)

Note: Refers to the statement 'this is for fools'.

शिलासदृशवृत्तिना (śilāsadṛśavṛttinā) - by one whose conduct/disposition is like a stone, by one with a rigid behavior

(adjective)

Instrumental, masculine, singular of śilāsadṛśavṛtti

śilāsadṛśavṛtti - one whose conduct is like a stone, having a rigid disposition

Compound type : bahuvrihi (śilā+sadṛśa+vṛtti)

• śilā – stone, rock
  noun (feminine)
• sadṛśa – like, similar to, resembling
  adjective (masculine)
  Prefix: sa
  Root: dṛś
• vṛtti – conduct, course of action, behavior, livelihood
  noun (feminine)
  From root vṛt (to be, exist, turn)
  Root: vṛt

Note: Modifies 'uktena' or implies the agent of the action.