Here are some more phrases you can use in your speech

babbling gossip

bacchanalian desires

bachelor freedom

bad omen

baffled sagacity        [sagacity = farsighted; wise]

balanced capacity

baldly described

baleful glances

balmy fragrance

bandying talk

baneful impression

banished silence

barbarous statecraft

barefaced appeal

barest commonplaces

barren opportunities

base intrigues

baseless assumptions

bashful modesty

basic principles

battered witticism

beaming countenance

bearish rudeness

beatific vision

beautiful modesty

beckoning horizon

becoming diffidence

bedraggled wretch

befitting honor

beggarly flimsiness

beguiling voice

belated acknowledgment

belittling fears

bellicose humanity

beneficent career

benevolent regard

benighted sense

benignant pity         [benignant = favorable; beneficial; kind]

beseeching gesture

besetting heresy

besotted fanaticism

bestial ferocity

bewildering maze