intensity of faith

interchange of ideas

interval of leisure

intoxication of vanity

intrepidity of youth

intuition of immortality

invasion of thought

irony of life

J

jangle of sounds

jargon of philosophy

jumble of facts

justness of decision

K

keenness of intellect

kernel of truth

key of knowledge

keynote of success

king of finance

kinship of humanity

L

lack of restraint

languor of nature [languor = dreamy, lazy mood ]

lapse of time

laws of decorum

laxity of mind

legacy of thought

liberty of conscience

light of experience

limit of endurance

link of sequence

loftiness of spirit

look of dominance

loophole of escape

love of approbation [approbation = warm approval; praise]

l.u.s.t of conquest

l.u.s.tihood of youth

luxuriance of expression

M

magnanimity of mind

majesty of despair

man of iron

mantle of verdure [verdure = lush greenness of flourishing vegetation]

martyrdom of ambition

marvel of competency

mask of flippancy

ma.s.s of mediocrity

master of phrasing