Certitude of Victory
It is not noisy, but it is sure.

Catesbaea spinosa
Lily thorn
Pendulous lemon-yellow funnel-shaped flower

Unostentatious Certitude
It does not flaunt nor try to convince anyone.

Platycodon grandiflorus
Balloon flower, Chinese bellflower
Blue semi-double bell-shaped flowers with short white stamens

Assured and calm, it never argues.

Nicotiana plumbaginifolia
Flowering tobacco, Jasmine tobacco
Smaller salverform white flowers

Sorry, Picture not available.