We must discriminate between strong and weak Ascendant types. A strong type Aries Ascendant would be willful, forceful, outgoing, outspoken, headstrong with much drive and initiative. A weak Aries type, however, would be weak, impulsive, emotional, reactive, defensive, may get headaches, ulcers or other diseases.
The weak type reflects the field of the sign but not the quality of its force. A strong Leo type will have a strong character, will power, drama and power about them. A weak Leo type would be self-defeated, have excessive imaginations about themselves, have too high standards and suffer from a feeling of lack of accomplishment.
Psychologically, Sun types are characterized by a strong will and a strong vital energy. They are independent and proud, perhaps vain. They like to be leaders or authorities and can gain much power over others. They turn others into their satellites and like to be the bestower of light. They are highly perceptive, a little critical, and can probe deeply into things. They make good scientists or psychologists. They have strong emotions but are seldom overcome by them.
Usually Sun types have a philosophical or religious disposition and are ethical in their actions. This comes out later in life, when they often become contemplative. In youth they are largely people of action rather than words and like to command a strong presence in the world. There is something noble or aristocratic about them and they like to associate with people and principles of value.
Often when an Ascendant is weak, other people in the life of the native may express its qualities. A weak Leo Ascendant may not make for a strong personality. The strong Leo traits may appear in relationship or in the circumstances of the life. The individual may work for or under or be related to strong Leo types. Leo would show their field of human communication and self-projection, but not the energy that they are able to develop themselves.