Whilst not exactly what you're talking about, the word 'sati' means mindfulness, and implies a pre-conceptual mindful awareness of the current moment.
It is also devoid of the "live for the moment and damn the consequences" type of thinking that your other draft quotation might infer, which is most certainly not Buddhist in its meaning.
"Having understood name-and-form, which is a product of prolificity,
And which is the root of all malady within and without,
He is released from bondage to the root of all maladies,
That Such-like-one is truly known as 'the one who has understood'." (Snp 3.6)
"Whether I were to preach in brief, Sāriputta, or whether I were to preach in detail, Sāriputta, or whether I were to preach both in brief or in detail, Sāriputta, rare are those who understand." (A I 333, Sāriputtasutta)