One verse

Srimad Bhagavatam 1.9.16

1.9.16

न ह्यस्य कर्हिचिद्राजन् पुमान् वेद विधित्सितम् । यद्विजिज्ञासया युक्ता मुह्यन्ति कवयोऽपि हि ॥ १६ ॥

na hy asya karhicid rajan puman veda vidhitsitam yad vijijnasaya yukta muhyanti kavayo ’pi hi

na
never
hi
certainly
asya
His
karhicit
whatsoever
rajan
O King
puman
anyone
veda
knows
vidhitsitam
plan
yat
which
vijijnasaya
with exhaustive inquiries
yuktah
being engaged
muhyanti
bewildered
kavayah
great philosophers
api
even
hi
certainly.

O King, no one can know the plan of the Lord (Sri Krsna). Even though great philosophers inquire exhaustively, they are bewildered.